diff --git a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-searcher/metadata-searcher.component.html b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-searcher/metadata-searcher.component.html
index 4c4a9dba0..16c77df11 100644
--- a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-searcher/metadata-searcher.component.html
+++ b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-searcher/metadata-searcher.component.html
@@ -14,7 +14,7 @@
         <div class="search-field search-field-provider">
           <label>
             <i class="pi pi-globe"></i>
-            {{ t('providers') }}
+            {{ t('providersLabel') }}
           </label>
           <p-multiselect
             [filter]="false"
@@ -29,7 +29,7 @@
         <div class="search-field">
           <label>
             <i class="pi pi-barcode"></i>
-            {{ t('isbn') }}
+            {{ t('isbnLabel') }}
             <i
               class="pi pi-info-circle"
               [pTooltip]="t('isbnTooltip')"
@@ -47,7 +47,7 @@
         <div class="search-field">
           <label>
             <i class="pi pi-book"></i>
-            {{ t('title') }}
+            {{ t('titleLabel') }}
           </label>
           <input
             pInputText
@@ -59,7 +59,7 @@
         <div class="search-field">
           <label>
             <i class="pi pi-user"></i>
-            {{ t('author') }}
+            {{ t('authorLabel') }}
           </label>
           <input
             pInputText
@@ -70,7 +70,7 @@
 
         <div class="search-field search-button-field">
           <p-button
-            [label]="t('search')"
+            [label]="t('searchBtn')"
             type="submit"
             [disabled]="!isSearchEnabled || loading"
             icon="pi pi-search"
@@ -128,7 +128,7 @@
           <i class="pi pi-search"></i>
         </div>
         <h3>{{ t('readyToSearch') }}</h3>
-        <p>{{ t('readyToSearchDescription') }}</p>
+        <p>{{ t('readyToSearchHint') }}</p>
       </div>
     }
 
@@ -138,7 +138,7 @@
           <i class="pi pi-inbox"></i>
         </div>
         <h3>{{ t('noResultsFound') }}</h3>
-        <p>{{ t('noResultsDescription') }}</p>
+        <p>{{ t('noResultsHint') }}</p>
       </div>
     }
 
@@ -154,7 +154,7 @@
                   loading="lazy"/>
                 <div class="card-overlay">
                   <i class="pi pi-eye"></i>
-                  <span>{{ t('select') }}</span>
+                  <span>{{ t('selectOverlay') }}</span>
                 </div>
               </div>
 
diff --git a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-tabs/metadata-tabs.component.html b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-tabs/metadata-tabs.component.html
index 5d0a8623b..e3f10fcc7 100644
--- a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-tabs/metadata-tabs.component.html
+++ b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-tabs/metadata-tabs.component.html
@@ -114,7 +114,7 @@
           @if (isPhysicalBook()) {
             <div class="empty-state">
               <i class="pi pi-book empty-state-icon"></i>
-              <h4 class="empty-state-title">{{ t('physicalBook') }}</h4>
+              <h4 class="empty-state-title">{{ t('physicalBookTitle') }}</h4>
               <p class="empty-state-message">{{ t('physicalBookMessage') }}</p>
               <p class="empty-state-hint">{{ t('physicalBookHint') }}</p>
             </div>
@@ -151,7 +151,7 @@
                           size="small"
                           text
                           severity="primary"
-                          [pTooltip]="t('read')"
+                          [pTooltip]="t('readTooltip')"
                           tooltipPosition="top"
                           (onClick)="read(book.id)">
                         </p-button>
@@ -160,7 +160,7 @@
                           size="small"
                           text
                           severity="info"
-                          [pTooltip]="t('streamingReader')"
+                          [pTooltip]="t('streamingReaderTooltip')"
                           tooltipPosition="top"
                           (onClick)="read(book.id, 'pdf-streaming')">
                         </p-button>
@@ -170,7 +170,7 @@
                           size="small"
                           text
                           severity="primary"
-                          [pTooltip]="t('read')"
+                          [pTooltip]="t('readTooltip')"
                           tooltipPosition="top"
                           (onClick)="read(book.id)">
                         </p-button>
@@ -179,7 +179,7 @@
                           size="small"
                           text
                           severity="info"
-                          [pTooltip]="t('streamingReader')"
+                          [pTooltip]="t('streamingReaderTooltip')"
                           tooltipPosition="top"
                           (onClick)="read(book.id, 'epub-streaming')">
                         </p-button>
@@ -189,7 +189,7 @@
                           size="small"
                           text
                           severity="primary"
-                          [pTooltip]="t('read')"
+                          [pTooltip]="t('readTooltip')"
                           tooltipPosition="top"
                           (onClick)="read(book.id)">
                         </p-button>
@@ -199,7 +199,7 @@
                           size="small"
                           text
                           severity="primary"
-                          [pTooltip]="t('play')"
+                          [pTooltip]="t('playTooltip')"
                           tooltipPosition="top"
                           (onClick)="read(book.id)">
                         </p-button>
@@ -209,7 +209,7 @@
                         size="small"
                         text
                         severity="success"
-                        [pTooltip]="t('download')"
+                        [pTooltip]="t('downloadTooltip')"
                         tooltipPosition="top"
                         (onClick)="download(book)">
                       </p-button>
@@ -218,7 +218,7 @@
                         size="small"
                         text
                         severity="danger"
-                        [pTooltip]="t('delete')"
+                        [pTooltip]="t('deleteTooltip')"
                         tooltipPosition="top"
                         (onClick)="deleteFile(book, book.primaryFile!.id, book.primaryFile!.fileName || 'file', true)">
                       </p-button>
@@ -247,7 +247,7 @@
                             size="small"
                             text
                             severity="primary"
-                            [pTooltip]="t('read')"
+                            [pTooltip]="t('readTooltip')"
                             tooltipPosition="top"
                             (onClick)="read(book.id, undefined, format.bookType)">
                           </p-button>
@@ -256,7 +256,7 @@
                             size="small"
                             text
                             severity="info"
-                            [pTooltip]="t('streamingReader')"
+                            [pTooltip]="t('streamingReaderTooltip')"
                             tooltipPosition="top"
                             (onClick)="read(book.id, format.bookType === 'PDF' ? 'pdf-streaming' : 'epub-streaming', format.bookType)">
                           </p-button>
@@ -266,7 +266,7 @@
                             size="small"
                             text
                             severity="primary"
-                            [pTooltip]="t('read')"
+                            [pTooltip]="t('readTooltip')"
                             tooltipPosition="top"
                             (onClick)="read(book.id, undefined, format.bookType)">
                           </p-button>
@@ -276,7 +276,7 @@
                             size="small"
                             text
                             severity="primary"
-                            [pTooltip]="t('play')"
+                            [pTooltip]="t('playTooltip')"
                             tooltipPosition="top"
                             (onClick)="read(book.id, undefined, format.bookType)">
                           </p-button>
@@ -286,7 +286,7 @@
                           size="small"
                           text
                           severity="success"
-                          [pTooltip]="t('download')"
+                          [pTooltip]="t('downloadTooltip')"
                           tooltipPosition="top"
                           (onClick)="downloadAdditionalFile(book, format.id)">
                         </p-button>
@@ -295,7 +295,7 @@
                           size="small"
                           text
                           severity="danger"
-                          [pTooltip]="t('delete')"
+                          [pTooltip]="t('deleteTooltip')"
                           tooltipPosition="top"
                           (onClick)="deleteFile(book, format.id, format.fileName || 'file', false)">
                         </p-button>
@@ -322,7 +322,7 @@
                           size="small"
                           text
                           severity="success"
-                          [pTooltip]="t('download')"
+                          [pTooltip]="t('downloadTooltip')"
                           tooltipPosition="top"
                           (onClick)="downloadAdditionalFile(book, file.id)">
                         </p-button>
@@ -331,7 +331,7 @@
                           size="small"
                           text
                           severity="danger"
-                          [pTooltip]="t('delete')"
+                          [pTooltip]="t('deleteTooltip')"
                           tooltipPosition="top"
                           (onClick)="deleteSupplementary(book.id, file.id, file.fileName || 'file')">
                         </p-button>
diff --git a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.html b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.html
index f30a4e0dc..3a54aee0a 100644
--- a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.html
+++ b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.html
@@ -270,7 +270,7 @@
           <div class="tags-section">
             @if (book?.metadata?.categories?.length) {
               <div class="tag-row">
-                <span class="tag-label">{{ t('genres') }}</span>
+                <span class="tag-label">{{ t('genresLabel') }}</span>
                 <div class="tag-scroll">
                   <div class="tag-container">
                     @for (category of book.metadata!.categories; track category) {
@@ -285,7 +285,7 @@
 
             @if (book?.metadata?.moods?.length) {
               <div class="tag-row">
-                <span class="tag-label">{{ t('moods') }}</span>
+                <span class="tag-label">{{ t('moodsLabel') }}</span>
                 <div class="tag-scroll">
                   <div class="tag-container">
                     @for (mood of book.metadata!.moods; track mood) {
@@ -300,7 +300,7 @@
 
             @if (book?.metadata?.tags?.length) {
               <div class="tag-row">
-                <span class="tag-label">{{ t('tags') }}</span>
+                <span class="tag-label">{{ t('tagsLabel') }}</span>
                 <div class="tag-scroll">
                   <div class="tag-container">
                     @for (tag of book.metadata!.tags; track tag) {
@@ -316,7 +316,7 @@
 
           <div class="metadata-grid">
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('library') }}</span>
+              <span class="metadata-key">{{ t('libraryLabel') }}</span>
               @if (book?.libraryName) {
                 <span class="metadata-value metadata-link" (click)="goToLibrary(book.libraryId!)">
                   {{ book?.libraryName }}
@@ -327,7 +327,7 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('publisher') }}</span>
+              <span class="metadata-key">{{ t('publisherLabel') }}</span>
               @if (book?.metadata?.publisher) {
                 <span class="metadata-value metadata-link" (click)="goToPublisher(book?.metadata?.publisher!)">
                   {{ book?.metadata?.publisher }}
@@ -338,7 +338,7 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('published') }}</span>
+              <span class="metadata-key">{{ t('publishedLabel') }}</span>
               @if (book?.metadata!.publishedDate) {
                 <span class="metadata-value metadata-link" (click)="goToPublishedYear(book?.metadata!.publishedDate!)">
                   {{ book?.metadata!.publishedDate }}
@@ -349,7 +349,7 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('language') }}</span>
+              <span class="metadata-key">{{ t('languageLabel') }}</span>
               @if (book?.metadata!.language) {
                 <span class="metadata-value metadata-link" (click)="goToLanguage(book?.metadata!.language!)">
                   {{ book?.metadata!.language }}
@@ -360,14 +360,14 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('formats') }}</span>
+              <span class="metadata-key">{{ t('formatsLabel') }}</span>
               <span class="metadata-value-group format-tags">
                 @if (getDisplayFormat(book?.primaryFile); as displayFormat) {
                   <span class="format-tag-wrapper primary-format" (click)="goToFileType(book?.primaryFile?.filePath)" [pTooltip]="book?.primaryFile?.fileName ?? ''" tooltipPosition="top">
                     <app-tag size="3xs" variant="pill" [customBgColor]="getFileTypeBgColor(displayFormat)" customTextColor="#fff">
                       {{ displayFormat }}
                     </app-tag>
-                    <span class="format-badge">{{ t('primary') }}</span>
+                    <span class="format-badge">{{ t('primaryBadge') }}</span>
                   </span>
                 }
                 @for (formatExt of getUniqueAlternativeFormats(book); track formatExt) {
@@ -378,13 +378,13 @@
                   </span>
                 }
                 @if (!book?.primaryFile?.filePath && !book?.alternativeFormats?.length) {
-                  <app-tag size="3xs" variant="pill" [customBgColor]="'var(--book-type-physical-color)'" customTextColor="#fff">{{ t('physical') }}</app-tag>
+                  <app-tag size="3xs" variant="pill" [customBgColor]="'var(--book-type-physical-color)'" customTextColor="#fff">{{ t('physicalBadge') }}</app-tag>
                 }
               </span>
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('bookloreProgress') }}</span>
+              <span class="metadata-key">{{ t('bookloreProgressLabel') }}</span>
               <span class="metadata-value-group">
                 <app-tag size="3xs" variant="pill" [color]="getProgressColor(getProgressPercent(book))">
                   {{ getProgressPercent(book) !== null ? getProgressPercent(book) + '%' : 'N/A' }}
@@ -405,7 +405,7 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('metadataMatch') }}</span>
+              <span class="metadata-key">{{ t('metadataMatchLabel') }}</span>
               @if (book?.metadataMatchScore != null) {
                 <span (click)="goToMatchScoreRange(book?.metadataMatchScore!)" style="cursor: pointer;">
                   <app-tag size="3xs" variant="pill" [color]="getMatchScoreColor(book?.metadataMatchScore!)">
@@ -433,7 +433,7 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('readStatus') }}</span>
+              <span class="metadata-key">{{ t('readStatusLabel') }}</span>
               <span class="metadata-value-group">
                 <span (click)="goToReadStatus(selectedReadStatus)" style="cursor: pointer;">
                   <app-tag size="3xs" variant="pill" [color]="getStatusColor(selectedReadStatus)">
@@ -447,7 +447,7 @@
 
             @if (book?.koreaderProgress && book.koreaderProgress?.percentage != null) {
               <div class="metadata-item">
-                <span class="metadata-key">{{ t('koreaderProgress') }}</span>
+                <span class="metadata-key">{{ t('koreaderProgressLabel') }}</span>
                 <span class="metadata-value-group">
                   <app-tag size="3xs" variant="pill" [color]="getKoProgressColor(getKOReaderPercentage(book))">
                     {{ getKOReaderPercentage(book) + '%' }}
@@ -468,7 +468,7 @@
 
             @if (book?.koboProgress && book.koboProgress?.percentage != null) {
               <div class="metadata-item">
-                <span class="metadata-key">{{ t('koboProgress') }}</span>
+                <span class="metadata-key">{{ t('koboProgressLabel') }}</span>
                 <span class="metadata-value-group">
                   <app-tag size="3xs" variant="pill" [color]="getKoProgressColor(book.koboProgress?.percentage)">
                     {{ book.koboProgress?.percentage | number:'1.0-1' }}%
@@ -490,7 +490,7 @@
             @if (selectedReadStatus === ReadStatus.READ) {
               <div class="metadata-item">
                 @if (book?.dateFinished) {
-                  <span class="metadata-key">{{ t('finishedOn') }}</span>
+                  <span class="metadata-key">{{ t('finishedOnLabel') }}</span>
                   @if (!isEditingDateFinished) {
                     <span class="metadata-value-group">
                       <span class="metadata-value">{{ formatDate(book.dateFinished) }}</span>
@@ -515,7 +515,7 @@
             }
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('pageCount') }}</span>
+              <span class="metadata-key">{{ t('pageCountLabel') }}</span>
               @if (book?.metadata!.pageCount) {
                 <span class="metadata-value metadata-link" (click)="goToPageCountRange(book?.metadata!.pageCount!)">
                   {{ book?.metadata!.pageCount }}
@@ -526,7 +526,7 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('ageRating') }}</span>
+              <span class="metadata-key">{{ t('ageRatingLabel') }}</span>
               @if (book?.metadata?.ageRating != null) {
                 <span class="metadata-value metadata-link" (click)="goToAgeRating(book?.metadata?.ageRating!)">
                   {{ getAgeRatingLabel(book?.metadata?.ageRating) }}
@@ -537,7 +537,7 @@
             </div>
 
             <div class="metadata-item">
-              <span class="metadata-key">{{ t('contentRating') }}</span>
+              <span class="metadata-key">{{ t('contentRatingLabel') }}</span>
               @if (book?.metadata?.contentRating) {
                 <span class="metadata-value metadata-link" (click)="goToContentRating(book?.metadata?.contentRating!)">
                   {{ getContentRatingLabel(book?.metadata?.contentRating) }}
@@ -549,7 +549,7 @@
 
             @if (hasDigitalFile(book)) {
               <div class="metadata-item">
-                <span class="metadata-key">{{ t('fileSize') }}</span>
+                <span class="metadata-key">{{ t('fileSizeLabel') }}</span>
                 @if (book?.primaryFile?.fileSizeKb) {
                   <span class="metadata-value metadata-link" (click)="goToFileSizeRange(book?.primaryFile?.fileSizeKb!)">
                     {{ formatFileSize(book?.primaryFile) }}
@@ -563,7 +563,7 @@
 
           @if (hasDigitalFile(book)) {
             <div class="file-path-section">
-              <span class="metadata-key">{{ t('filePath') }}</span>
+              <span class="metadata-key">{{ t('filePathLabel') }}</span>
               <i class="pi eye-icon" [ngClass]="showFilePath ? 'pi-eye-slash' : 'pi-eye'" (click)="showFilePath = !showFilePath"></i>
               @if (showFilePath) {
                 <code class="file-path-code">{{ book?.primaryFile?.filePath }}</code>
@@ -628,7 +628,7 @@
                 }
                 @if (userState.user!.permissions.canEditMetadata || userState.user!.permissions.admin) {
                   <p-button
-                    [label]="isAutoFetching ? t('fetchingMetadata') : t('fetchMetadata')"
+                    [label]="isAutoFetching ? t('fetchingBtn') : t('fetchMetadataBtn')"
                     [icon]="isAutoFetching ? 'pi pi-spin pi-spinner' : 'pi pi-bolt'"
                     [outlined]="true"
                     severity="warn"
@@ -655,7 +655,7 @@
     <div class="description-section">
       <div class="section-header">
         <i class="pi pi-align-left"></i>
-        <span>{{ t('synopsis') }}</span>
+        <span>{{ t('synopsisTitle') }}</span>
       </div>
       <div class="description-body">
         <div [ngClass]="{ 'line-clamp-7': !isExpanded }" class="description-content">
@@ -679,7 +679,7 @@
         <div class="section-header clickable" (click)="isComicSectionExpanded = !isComicSectionExpanded">
           <div class="section-header-left">
             <i class="pi pi-images"></i>
-            <span>{{ t('comicDetails') }}</span>
+            <span>{{ t('comicDetailsTitle') }}</span>
           </div>
           <i class="pi section-toggle-icon" [ngClass]="isComicSectionExpanded ? 'pi-chevron-up' : 'pi-chevron-down'"></i>
         </div>
@@ -690,13 +690,13 @@
           <div class="comic-info-grid">
             @if (comic.issueNumber) {
               <div class="comic-info-item">
-                <span class="comic-info-label">{{ t('issue') }}</span>
+                <span class="comic-info-label">{{ t('comicIssue') }}</span>
                 <span class="comic-info-value">#{{ comic.issueNumber }}</span>
               </div>
             }
             @if (comic.volumeName) {
               <div class="comic-info-item">
-                <span class="comic-info-label">{{ t('volume') }}</span>
+                <span class="comic-info-label">{{ t('comicVolume') }}</span>
                 <span class="comic-info-value">
                   {{ comic.volumeName }}
                   @if (comic.volumeNumber) {
@@ -707,7 +707,7 @@
             }
             @if (comic.storyArc) {
               <div class="comic-info-item">
-                <span class="comic-info-label">{{ t('storyArc') }}</span>
+                <span class="comic-info-label">{{ t('comicStoryArc') }}</span>
                 <span class="comic-info-value">
                   {{ comic.storyArc }}
                   @if (comic.storyArcNumber) {
@@ -718,7 +718,7 @@
             }
             @if (comic.alternateSeries) {
               <div class="comic-info-item">
-                <span class="comic-info-label">{{ t('altSeries') }}</span>
+                <span class="comic-info-label">{{ t('comicAltSeries') }}</span>
                 <span class="comic-info-value">
                   {{ comic.alternateSeries }}
                   @if (comic.alternateIssue) {
@@ -729,13 +729,13 @@
             }
             @if (comic.format) {
               <div class="comic-info-item">
-                <span class="comic-info-label">{{ t('format') }}</span>
+                <span class="comic-info-label">{{ t('comicFormat') }}</span>
                 <span class="comic-info-value">{{ comic.format }}</span>
               </div>
             }
             @if (comic.imprint) {
               <div class="comic-info-item">
-                <span class="comic-info-label">{{ t('imprint') }}</span>
+                <span class="comic-info-label">{{ t('comicImprint') }}</span>
                 <span class="comic-info-value">{{ comic.imprint }}</span>
               </div>
             }
@@ -745,7 +745,7 @@
             <div class="comic-subsection">
               <div class="comic-subsection-title">
                 <i class="pi pi-users"></i>
-                <span>{{ t('creators') }}</span>
+                <span>{{ t('creatorsTitle') }}</span>
               </div>
               <div class="comic-creators-grid">
                 @if (comic.pencillers?.length) {
@@ -816,7 +816,7 @@
             <div class="comic-subsection">
               <div class="comic-subsection-title">
                 <i class="pi pi-globe"></i>
-                <span>{{ t('universe') }}</span>
+                <span>{{ t('universeTitle') }}</span>
               </div>
               <div class="comic-tags-container">
                 @if (comic.characters?.length) {
@@ -868,12 +868,12 @@
               }
               @if (comic.blackAndWhite) {
                 <span class="comic-property-badge bw">
-                  <i class="pi pi-palette"></i> {{ t('bw') }}
+                  <i class="pi pi-palette"></i> {{ t('blackAndWhite') }}
                 </span>
               }
               @if (comic.readingDirection === 'rtl') {
                 <span class="comic-property-badge rtl">
-                  <i class="pi pi-arrow-left"></i> {{ t('rtl') }}
+                  <i class="pi pi-arrow-left"></i> {{ t('rightToLeft') }}
                 </span>
               }
             </div>
@@ -892,7 +892,7 @@
             <div class="comic-notes">
               <div class="comic-notes-label">
                 <i class="pi pi-file-edit"></i>
-                <span>{{ t('comicNotes') }}</span>
+                <span>{{ t('notesLabel') }}</span>
               </div>
               <p class="comic-notes-content">{{ comic.notes }}</p>
             </div>
@@ -906,7 +906,7 @@
         <div class="section-header clickable" (click)="isAudiobookSectionExpanded = !isAudiobookSectionExpanded">
           <div class="section-header-left">
             <i class="pi pi-headphones"></i>
-            <span>{{ t('audiobookDetails') }}</span>
+            <span>{{ t('audiobookDetailsTitle') }}</span>
           </div>
           <i class="pi section-toggle-icon" [ngClass]="isAudiobookSectionExpanded ? 'pi-chevron-up' : 'pi-chevron-down'"></i>
         </div>
@@ -917,13 +917,13 @@
           <div class="audiobook-info-grid">
             @if (audio.durationSeconds) {
               <div class="audiobook-info-item">
-                <span class="audiobook-info-label">{{ t('duration') }}</span>
+                <span class="audiobook-info-label">{{ t('audiobookDuration') }}</span>
                 <span class="audiobook-info-value">{{ formatDuration(audio.durationSeconds) }}</span>
               </div>
             }
             @if (book.metadata?.narrator) {
               <div class="audiobook-info-item">
-                <span class="audiobook-info-label">{{ t('narrator') }}</span>
+                <span class="audiobook-info-label">{{ t('audiobookNarrator') }}</span>
                 <a class="audiobook-info-value audiobook-link" (click)="goToNarrator(book.metadata!.narrator!)">
                   {{ book.metadata?.narrator }}
                 </a>
@@ -931,31 +931,31 @@
             }
             @if (audio.chapterCount) {
               <div class="audiobook-info-item">
-                <span class="audiobook-info-label">{{ t('chapters') }}</span>
+                <span class="audiobook-info-label">{{ t('audiobookChapters') }}</span>
                 <span class="audiobook-info-value">{{ audio.chapterCount }}</span>
               </div>
             }
             @if (audio.bitrate) {
               <div class="audiobook-info-item">
-                <span class="audiobook-info-label">{{ t('bitrate') }}</span>
+                <span class="audiobook-info-label">{{ t('audiobookBitrate') }}</span>
                 <span class="audiobook-info-value">{{ audio.bitrate }} kbps</span>
               </div>
             }
             @if (audio.sampleRate) {
               <div class="audiobook-info-item">
-                <span class="audiobook-info-label">{{ t('sampleRate') }}</span>
+                <span class="audiobook-info-label">{{ t('audiobookSampleRate') }}</span>
                 <span class="audiobook-info-value">{{ formatSampleRate(audio.sampleRate) }}</span>
               </div>
             }
             @if (audio.channels) {
               <div class="audiobook-info-item">
-                <span class="audiobook-info-label">{{ t('channels') }}</span>
+                <span class="audiobook-info-label">{{ t('audiobookChannels') }}</span>
                 <span class="audiobook-info-value">{{ getChannelLabel(audio.channels) }}</span>
               </div>
             }
             @if (audio.codec) {
               <div class="audiobook-info-item">
-                <span class="audiobook-info-label">{{ t('codec') }}</span>
+                <span class="audiobook-info-label">{{ t('audiobookCodec') }}</span>
                 <span class="audiobook-info-value">{{ audio.codec.toUpperCase() }}</span>
               </div>
             }
diff --git a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.ts b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.ts
index 4e31c1f71..be7f3c366 100644
--- a/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.ts
+++ b/booklore-ui/src/app/features/metadata/component/book-metadata-center/metadata-viewer/metadata-viewer.component.ts
@@ -78,16 +78,16 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
   isEditingDateFinished = false;
   editDateFinished: Date | null = null;
 
-  readStatusOptions: { value: ReadStatus, label: string }[] = [
-    {value: ReadStatus.UNREAD, label: 'Unread'},
-    {value: ReadStatus.PAUSED, label: 'Paused'},
-    {value: ReadStatus.READING, label: 'Reading'},
-    {value: ReadStatus.RE_READING, label: 'Re-reading'},
-    {value: ReadStatus.READ, label: 'Read'},
-    {value: ReadStatus.PARTIALLY_READ, label: 'Partially Read'},
-    {value: ReadStatus.ABANDONED, label: 'Abandoned'},
-    {value: ReadStatus.WONT_READ, label: 'Won\'t Read'},
-    {value: ReadStatus.UNSET, label: 'Unset'},
+  readStatusOptions: { value: ReadStatus, labelKey: string }[] = [
+    {value: ReadStatus.UNREAD, labelKey: 'metadata.viewer.readStatusUnread'},
+    {value: ReadStatus.PAUSED, labelKey: 'metadata.viewer.readStatusPaused'},
+    {value: ReadStatus.READING, labelKey: 'metadata.viewer.readStatusReading'},
+    {value: ReadStatus.RE_READING, labelKey: 'metadata.viewer.readStatusReReading'},
+    {value: ReadStatus.READ, labelKey: 'metadata.viewer.readStatusRead'},
+    {value: ReadStatus.PARTIALLY_READ, labelKey: 'metadata.viewer.readStatusPartiallyRead'},
+    {value: ReadStatus.ABANDONED, labelKey: 'metadata.viewer.readStatusAbandoned'},
+    {value: ReadStatus.WONT_READ, labelKey: 'metadata.viewer.readStatusWontRead'},
+    {value: ReadStatus.UNSET, labelKey: 'metadata.viewer.readStatusUnset'},
   ];
 
   private bookNavigationService = inject(BookNavigationService);
@@ -105,13 +105,13 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
         const primaryType = book.primaryFile?.bookType;
         if (primaryType === 'PDF') {
           items.push({
-            label: this.t.translate('metadata.viewer.streamingReader'),
+            label: this.t.translate('metadata.viewer.menuStreamingReader'),
             icon: 'pi pi-play',
             command: () => this.read(book.id, 'pdf-streaming')
           });
         } else if (primaryType === 'EPUB') {
           items.push({
-            label: this.t.translate('metadata.viewer.streamingReader'),
+            label: this.t.translate('metadata.viewer.menuStreamingReader'),
             icon: 'pi pi-play',
             command: () => this.read(book.id, 'epub-streaming')
           });
@@ -138,12 +138,12 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
                 icon: this.getFileIcon(formatType),
                 items: [
                   {
-                    label: this.t.translate('metadata.viewer.standardReader'),
+                    label: this.t.translate('metadata.viewer.menuStandardReader'),
                     icon: 'pi pi-book',
                     command: () => this.read(book.id, undefined, formatType)
                   },
                   {
-                    label: this.t.translate('metadata.viewer.streamingReader'),
+                    label: this.t.translate('metadata.viewer.menuStreamingReader'),
                     icon: 'pi pi-play',
                     command: () => this.read(book.id, formatType === 'PDF' ? 'pdf-streaming' : 'epub-streaming', formatType)
                   }
@@ -216,7 +216,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
             const items: MenuItem[] = [];
 
             items.push({
-              label: this.t.translate('metadata.viewer.shelf'),
+              label: this.t.translate('metadata.viewer.menuShelf'),
               icon: 'pi pi-folder',
               command: () => this.assignShelf(book.id)
             });
@@ -225,7 +225,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
 
             if (userState?.user?.permissions.canUpload || userState?.user?.permissions.admin) {
               items.push({
-                label: this.t.translate('metadata.viewer.uploadFile'),
+                label: this.t.translate('metadata.viewer.menuUploadFile'),
                 icon: 'pi pi-upload',
                 command: () => {
                   this.bookDialogHelperService.openAdditionalFileUploaderDialog(book);
@@ -237,7 +237,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
 
             if (hasFiles && (userState?.user?.permissions.canManageLibrary || userState?.user?.permissions.admin) && appSettings?.diskType === 'LOCAL') {
               items.push({
-                label: this.t.translate('metadata.viewer.organizeFiles'),
+                label: this.t.translate('metadata.viewer.menuOrganizeFiles'),
                 icon: 'pi pi-arrows-h',
                 command: () => {
                   this.openFileMoverDialog(book.id);
@@ -247,16 +247,16 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
 
             if (hasFiles && (userState?.user?.permissions.canEmailBook || userState?.user?.permissions.admin)) {
               items.push({
-                label: this.t.translate('metadata.viewer.sendBook'),
+                label: this.t.translate('metadata.viewer.menuSendBook'),
                 icon: 'pi pi-send',
                 items: [
                   {
-                    label: this.t.translate('metadata.viewer.quickSend'),
+                    label: this.t.translate('metadata.viewer.menuQuickSend'),
                     icon: 'pi pi-bolt',
                     command: () => this.quickSend(book.id)
                   },
                   {
-                    label: this.t.translate('metadata.viewer.customSend'),
+                    label: this.t.translate('metadata.viewer.menuCustomSend'),
                     icon: 'pi pi-cog',
                     command: () => {
                       this.bookDialogHelperService.openCustomSendDialog(book);
@@ -270,7 +270,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
             const isSingleFileBook = hasFiles && !book.alternativeFormats?.length;
             if (isSingleFileBook && (userState?.user?.permissions.canManageLibrary || userState?.user?.permissions.admin)) {
               items.push({
-                label: this.t.translate('metadata.viewer.attachToAnotherBook'),
+                label: this.t.translate('metadata.viewer.menuAttachToAnotherBook'),
                 icon: 'pi pi-link',
                 command: () => {
                   this.bookDialogHelperService.openBookFileAttacherDialog(book);
@@ -312,7 +312,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
 
               if (deleteFormatItems.length > 0) {
                 items.push({
-                  label: this.t.translate('metadata.viewer.deleteFileFormats'),
+                  label: this.t.translate('metadata.viewer.menuDeleteFileFormats'),
                   icon: 'pi pi-file',
                   items: deleteFormatItems
                 });
@@ -333,7 +333,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
                 });
 
                 items.push({
-                  label: this.t.translate('metadata.viewer.deleteSupplementaryFiles'),
+                  label: this.t.translate('metadata.viewer.menuDeleteSupplementaryFiles'),
                   icon: 'pi pi-paperclip',
                   items: deleteSupplementaryItems
                 });
@@ -356,11 +356,11 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
                 ? `\n\nThe following files will be permanently deleted:\n• ${allFormats.join('\n• ')}`
                 : '';
 
-              const deleteLabel = isPhysical ? this.t.translate('metadata.viewer.deleteBook') : this.t.translate('metadata.viewer.deleteBookAndAllFiles');
+              const deleteLabel = isPhysical ? this.t.translate('metadata.viewer.menuDeleteBook') : this.t.translate('metadata.viewer.menuDeleteBookAllFiles');
               const deleteMessage = isPhysical
                 ? this.t.translate('metadata.viewer.confirm.deleteBookMessage', { title: book.metadata?.title })
-                : this.t.translate('metadata.viewer.confirm.deleteBookAndFilesMessage', { title: book.metadata?.title, fileList: fileListMessage });
-              const deleteAcceptLabel = isPhysical ? this.t.translate('common.delete') : this.t.translate('metadata.viewer.deleteEverything');
+                : this.t.translate('metadata.viewer.confirm.deleteBookAllFilesMessage', { title: book.metadata?.title, fileList: fileListMessage });
+              const deleteAcceptLabel = isPhysical ? this.t.translate('common.delete') : this.t.translate('metadata.viewer.confirm.deleteEverythingBtn');
 
               items.push({
                 label: deleteLabel,
@@ -480,9 +480,9 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
   getReadButtonLabel(book: Book): string {
     const isAudiobook = book.primaryFile?.bookType === 'AUDIOBOOK';
     if (this.isInProgressStatus()) {
-      return isAudiobook ? this.t.translate('metadata.viewer.continue') : this.t.translate('metadata.viewer.continueReading');
+      return isAudiobook ? this.t.translate('metadata.viewer.continueBtn') : this.t.translate('metadata.viewer.continueReadingBtn');
     }
-    return isAudiobook ? this.t.translate('metadata.viewer.playAction') : this.t.translate('metadata.viewer.readAction');
+    return isAudiobook ? this.t.translate('metadata.viewer.playBtn') : this.t.translate('metadata.viewer.readBtn');
   }
 
   getReadButtonIcon(book: Book): string {
@@ -564,8 +564,8 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
       message = this.t.translate('metadata.viewer.confirm.deletePrimaryFormatMessage', { fileName });
       header = this.t.translate('metadata.viewer.confirm.deletePrimaryFormatHeader');
     } else {
-      message = this.t.translate('metadata.viewer.confirm.deleteAlternativeFormatMessage', { fileName });
-      header = this.t.translate('metadata.viewer.confirm.deleteAlternativeFormatHeader');
+      message = this.t.translate('metadata.viewer.confirm.deleteAltFormatMessage', { fileName });
+      header = this.t.translate('metadata.viewer.confirm.deleteAltFormatHeader');
     }
 
     this.confirmationService.confirm({
@@ -574,7 +574,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
       icon: 'pi pi-exclamation-triangle',
       acceptIcon: 'pi pi-trash',
       rejectIcon: 'pi pi-times',
-      acceptLabel: this.t.translate('metadata.viewer.confirm.deleteFile'),
+      acceptLabel: this.t.translate('metadata.viewer.confirm.deleteFileBtn'),
       rejectLabel: this.t.translate('common.cancel'),
       rejectButtonStyleClass: 'p-button-secondary',
       acceptButtonStyleClass: 'p-button-danger',
@@ -622,7 +622,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
       error: (err) => this.messageService.add({
         severity: 'error',
         summary: this.t.translate('metadata.viewer.toast.quickSendErrorSummary'),
-        detail: err?.error?.message || this.t.translate('metadata.viewer.toast.quickSendErrorDetailFallback'),
+        detail: err?.error?.message || this.t.translate('metadata.viewer.toast.quickSendErrorDetail'),
       })
     });
   }
@@ -1122,12 +1122,13 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
   }
 
   readStatusMenuItems = this.readStatusOptions.map(option => ({
-    label: option.label,
+    label: this.t.translate(option.labelKey),
     command: () => this.updateReadStatus(option.value)
   }));
 
   getStatusLabel(value: string): string {
-    return this.readStatusOptions.find(o => o.value === value)?.label.toUpperCase() ?? 'UNSET';
+    const option = this.readStatusOptions.find(o => o.value === value);
+    return option ? this.t.translate(option.labelKey).toUpperCase() : 'UNSET';
   }
 
 
@@ -1170,8 +1171,8 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
       error: () => {
         this.messageService.add({
           severity: 'error',
-          summary: this.t.translate('metadata.viewer.toast.dateFailedSummary'),
-          detail: this.t.translate('metadata.viewer.toast.dateFailedDetail'),
+          summary: this.t.translate('metadata.viewer.toast.dateUpdateFailedSummary'),
+          detail: this.t.translate('metadata.viewer.toast.dateUpdateFailedDetail'),
           life: 3000
         });
       }
@@ -1225,7 +1226,7 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
 
   getNavigationPosition(): string {
     const position = this.bookNavigationService.getCurrentPosition();
-    return position ? this.t.translate('metadata.viewer.navigationOf', { current: position.current, total: position.total }) : '';
+    return position ? this.t.translate('metadata.viewer.navigationPosition', { current: position.current, total: position.total }) : '';
   }
 
   hasDigitalFile(book: Book): boolean {
@@ -1353,11 +1354,11 @@ export class MetadataViewerComponent implements OnInit, OnChanges {
   getChannelLabel(channels: number): string {
     switch (channels) {
       case 1:
-        return 'Mono';
+        return this.t.translate('metadata.viewer.channelMono');
       case 2:
-        return 'Stereo';
+        return this.t.translate('metadata.viewer.channelStereo');
       default:
-        return `${channels} channels`;
+        return this.t.translate('metadata.viewer.channelMultiple', { count: channels });
     }
   }
 
diff --git a/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.html b/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.html
index 28b07c1e1..ba377bdc2 100644
--- a/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.html
+++ b/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.html
@@ -24,7 +24,7 @@
   } @else {
     <div class="sidecar-actions">
       <p-button
-        [label]="t('exportToSidecar')"
+        [label]="t('exportBtn')"
         icon="pi pi-upload"
         [loading]="exporting"
         (onClick)="exportToSidecar()"
@@ -34,7 +34,7 @@
         tooltipPosition="top"
       />
       <p-button
-        [label]="t('importFromSidecar')"
+        [label]="t('importBtn')"
         icon="pi pi-download"
         [loading]="importing"
         [disabled]="syncStatus === 'MISSING'"
@@ -49,7 +49,7 @@
     @if (syncStatus === 'MISSING') {
       <div class="empty-state">
         <i class="pi pi-file"></i>
-        <h4>{{ t('noSidecarFile') }}</h4>
+        <h4>{{ t('noSidecarTitle') }}</h4>
         <p>
           {{ t('noSidecarDescription') }}
         </p>
@@ -60,15 +60,15 @@
           <div class="content-meta">
             <span class="meta-item">
               <i class="pi pi-clock"></i>
-              {{ t('generated') }} {{ sidecarContent.generatedAt | date:'medium' }}
+              {{ t('generatedLabel') }} {{ sidecarContent.generatedAt | date:'medium' }}
             </span>
             <span class="meta-item">
               <i class="pi pi-tag"></i>
-              {{ t('version') }} {{ sidecarContent.version }}
+              {{ t('versionLabel') }} {{ sidecarContent.version }}
             </span>
             <span class="meta-item">
               <i class="pi pi-cog"></i>
-              {{ t('generatedBy') }} {{ sidecarContent.generatedBy }}
+              {{ t('byLabel') }} {{ sidecarContent.generatedBy }}
             </span>
           </div>
         </div>
@@ -80,7 +80,7 @@
         @if (sidecarContent.cover) {
           <div class="cover-info">
             <i class="pi pi-image"></i>
-            <span>{{ t('coverFile') }} {{ sidecarContent.cover.path }}</span>
+            <span>{{ t('coverFileLabel') }} {{ sidecarContent.cover.path }}</span>
           </div>
         }
       </div>
diff --git a/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.ts b/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.ts
index 54ea83538..02a419700 100644
--- a/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.ts
+++ b/booklore-ui/src/app/features/metadata/component/book-metadata-center/sidecar-viewer/sidecar-viewer.component.ts
@@ -161,17 +161,17 @@ export class SidecarViewerComponent implements OnInit, OnDestroy {
   getSyncStatusLabel(): string {
     switch (this.syncStatus) {
       case 'IN_SYNC':
-        return this.t.translate('metadata.sidecar.syncStatus.inSync');
+        return this.t.translate('metadata.sidecar.syncStatusInSync');
       case 'OUTDATED':
-        return this.t.translate('metadata.sidecar.syncStatus.outdated');
+        return this.t.translate('metadata.sidecar.syncStatusOutdated');
       case 'CONFLICT':
-        return this.t.translate('metadata.sidecar.syncStatus.conflict');
+        return this.t.translate('metadata.sidecar.syncStatusConflict');
       case 'MISSING':
-        return this.t.translate('metadata.sidecar.syncStatus.missing');
+        return this.t.translate('metadata.sidecar.syncStatusMissing');
       case 'NOT_APPLICABLE':
-        return this.t.translate('metadata.sidecar.syncStatus.notApplicable');
+        return this.t.translate('metadata.sidecar.syncStatusNA');
       default:
-        return this.t.translate('metadata.sidecar.syncStatus.unknown');
+        return this.t.translate('metadata.sidecar.syncStatusUnknown');
     }
   }
 
diff --git a/booklore-ui/src/i18n/en/metadata.json b/booklore-ui/src/i18n/en/metadata.json
index 6d4179e16..1e08b6b03 100644
--- a/booklore-ui/src/i18n/en/metadata.json
+++ b/booklore-ui/src/i18n/en/metadata.json
@@ -215,7 +215,8 @@
     "playTooltip": "Play",
     "downloadTooltip": "Download",
     "deleteTooltip": "Delete",
-    "downloadAllTooltip": "Download all files as a ZIP archive"
+    "downloadAllTooltip": "Download all files as a ZIP archive",
+    "physicalBookHint": "You can upload a digital copy or add metadata manually."
   },
   "viewer": {
     "metadataLocked": "This book metadata is locked.",
@@ -288,6 +289,10 @@
     "continueBtn": "Continue",
     "fetchMetadataBtn": "Fetch Metadata",
     "fetchingBtn": "Fetching...",
+    "fetchMetadataTooltip": "Quickly refresh metadata using your default fetch settings",
+    "goToPreviousBook": "Go to Previous Book",
+    "goToNextBook": "Go to Next Book",
+    "personalRating": "Personal Rating",
     "loadingBookDetails": "Loading book details...",
     "readStatusUnread": "Unread",
     "readStatusPaused": "Paused",
diff --git a/booklore-ui/src/i18n/es/metadata.json b/booklore-ui/src/i18n/es/metadata.json
index 54e9e83cc..500ec7b28 100644
--- a/booklore-ui/src/i18n/es/metadata.json
+++ b/booklore-ui/src/i18n/es/metadata.json
@@ -215,7 +215,8 @@
     "playTooltip": "Reproducir",
     "downloadTooltip": "Descargar",
     "deleteTooltip": "Eliminar",
-    "downloadAllTooltip": "Descargar todos los archivos como archivo ZIP"
+    "downloadAllTooltip": "Descargar todos los archivos como archivo ZIP",
+    "physicalBookHint": "Puede subir una copia digital o agregar metadatos manualmente."
   },
   "viewer": {
     "metadataLocked": "Los metadatos de este libro están bloqueados.",
@@ -288,6 +289,10 @@
     "continueBtn": "Continuar",
     "fetchMetadataBtn": "Obtener metadatos",
     "fetchingBtn": "Obteniendo...",
+    "fetchMetadataTooltip": "Actualizar rápidamente los metadatos usando la configuración predeterminada",
+    "goToPreviousBook": "Ir al libro anterior",
+    "goToNextBook": "Ir al siguiente libro",
+    "personalRating": "Calificación personal",
     "loadingBookDetails": "Cargando detalles del libro...",
     "readStatusUnread": "No leído",
     "readStatusPaused": "Pausado",