diff --git a/apps/readest-app/src/components/metadata/BookDetailEdit.tsx b/apps/readest-app/src/components/metadata/BookDetailEdit.tsx
index a2918de1..2dec4a8e 100644
--- a/apps/readest-app/src/components/metadata/BookDetailEdit.tsx
+++ b/apps/readest-app/src/components/metadata/BookDetailEdit.tsx
@@ -6,7 +6,7 @@ import { Book } from '@/types/book';
 import { BookMetadata } from '@/libs/document';
 import { useEnv } from '@/context/EnvContext';
 import { useTranslation } from '@/hooks/useTranslation';
-import { formatAuthors, formatTitle } from '@/utils/book';
+import { flattenContributors, formatAuthors, formatPublisher, formatTitle } from '@/utils/book';
 import { FormField } from './FormField';
 import { IMAGE_ACCEPT_FORMATS, SUPPORTED_IMAGE_EXTS } from '@/services/constants';
 import { isTauriAppPlatform } from '@/services/environment';
@@ -107,7 +107,7 @@ const BookDetailEdit: React.FC<BookDetailEditProps> = ({
     {
       field: 'publisher',
       label: _('Publisher'),
-      value: metadata.publisher || '',
+      value: formatPublisher(metadata.publisher || ''),
       placeholder: _('Enter publisher'),
     },
     {
@@ -135,7 +135,7 @@ const BookDetailEdit: React.FC<BookDetailEditProps> = ({
     {
       field: 'subject',
       label: _('Subjects'),
-      value: Array.isArray(metadata.subject) ? metadata.subject.join(',') : metadata.subject || '',
+      value: flattenContributors(metadata.subject || []),
       placeholder: _('Fiction, Science, History'),
     },
     {
diff --git a/apps/readest-app/src/components/metadata/BookDetailView.tsx b/apps/readest-app/src/components/metadata/BookDetailView.tsx
index 0923ed38..3a2d29f4 100644
--- a/apps/readest-app/src/components/metadata/BookDetailView.tsx
+++ b/apps/readest-app/src/components/metadata/BookDetailView.tsx
@@ -16,7 +16,6 @@ import {
   formatFileSize,
   formatLanguage,
   formatPublisher,
-  formatSubject,
   formatTitle,
 } from '@/utils/book';
 import BookCover from '@/components/BookCover';
@@ -120,7 +119,7 @@ const BookDetailView: React.FC<BookDetailViewProps> = ({
           <div className='overflow-hidden'>
             <span className='font-bold'>{_('Subjects')}</span>
             <p className='text-neutral-content line-clamp-3 text-sm'>
-              {formatSubject(metadata.subject) || _('Unknown')}
+              {formatAuthors(metadata.subject || '') || _('Unknown')}
             </p>
           </div>
           <div className='overflow-hidden'>
diff --git a/apps/readest-app/src/libs/document.ts b/apps/readest-app/src/libs/document.ts
index f89ebc35..d7198c67 100644
--- a/apps/readest-app/src/libs/document.ts
+++ b/apps/readest-app/src/libs/document.ts
@@ -68,7 +68,7 @@ export type BookMetadata = {
   publisher?: string;
   published?: string;
   description?: string;
-  subject?: string[];
+  subject?: string | string[] | Contributor;
   identifier?: string;
 
   subtitle?: string;
diff --git a/apps/readest-app/src/utils/book.ts b/apps/readest-app/src/utils/book.ts
index ef640154..8cfbd8f5 100644
--- a/apps/readest-app/src/utils/book.ts
+++ b/apps/readest-app/src/utils/book.ts
@@ -89,8 +89,23 @@ export const getBookLangCode = (lang: string | string[] | undefined) => {
   }
 };
 
+export const flattenContributors = (
+  contributors: string | string[] | Contributor | Contributor[],
+) => {
+  if (!contributors) return '';
+  return Array.isArray(contributors)
+    ? contributors
+        .map((contributor) =>
+          typeof contributor === 'string' ? contributor : formatLanguageMap(contributor?.name),
+        )
+        .join(', ')
+    : typeof contributors === 'string'
+      ? contributors
+      : formatLanguageMap(contributors?.name);
+};
+
 export const formatAuthors = (
-  contributors: string | Contributor | [string | Contributor],
+  contributors: string | string[] | Contributor | Contributor[],
   bookLang?: string | string[],
 ) => {
   const langCode = getBookLangCode(bookLang) || 'en';
@@ -141,11 +156,6 @@ export const formatDate = (date: string | number | Date | null | undefined, isUT
   }
 };
 
-export const formatSubject = (subject: string | string[] | undefined) => {
-  if (!subject) return '';
-  return Array.isArray(subject) ? subject.join(', ') : subject;
-};
-
 export const formatFileSize = (size: number | null) => {
   if (size === null) return '';
   const formatter = new Intl.NumberFormat('en', {