diff --git a/apps/readest-app/public/locales/ar/translation.json b/apps/readest-app/public/locales/ar/translation.json
index f354d9db..04ef940e 100644
--- a/apps/readest-app/public/locales/ar/translation.json
+++ b/apps/readest-app/public/locales/ar/translation.json
@@ -1024,7 +1024,6 @@
   "Unable to start RSVP": "تعذر بدء RSVP",
   "RSVP not supported for PDF": "RSVP غير مدعوم لملفات PDF",
   "Select Chapter": "اختر الفصل",
-  "{{number}} WPM": "{{number}} كلمة في الدقيقة",
   "Context": "السياق",
   "Ready": "جاهز",
   "Chapter Progress": "تقدم الفصل",
diff --git a/apps/readest-app/public/locales/bn/translation.json b/apps/readest-app/public/locales/bn/translation.json
index 27aba163..24f196df 100644
--- a/apps/readest-app/public/locales/bn/translation.json
+++ b/apps/readest-app/public/locales/bn/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "RSVP शुरू করতে অসমর্থ",
   "RSVP not supported for PDF": "PDF-এর জন্য RSVP সমর্থিত নয়",
   "Select Chapter": "অধ্যায় নির্বাচন করুন",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "প্রসঙ্গ",
   "Ready": "প্রস্তুত",
   "Chapter Progress": "অধ্যায় অগ্রগতি",
diff --git a/apps/readest-app/public/locales/bo/translation.json b/apps/readest-app/public/locales/bo/translation.json
index be11bfe4..64621cf5 100644
--- a/apps/readest-app/public/locales/bo/translation.json
+++ b/apps/readest-app/public/locales/bo/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "RSVP འགོ་འཛུགས་མ་ཐུབ།",
   "RSVP not supported for PDF": "PDF ལ་ RSVP རྒྱབ་སྐྱོར་མེད།",
   "Select Chapter": "ལེའུ་འདེམས་པ།",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "བརྗོད་དོན།",
   "Ready": "གྲ་སྒྲིག་ཡོད།",
   "Chapter Progress": "ལེའུའི་འཕེལ་རིམ།",
diff --git a/apps/readest-app/public/locales/de/translation.json b/apps/readest-app/public/locales/de/translation.json
index 4b766048..fe4d8233 100644
--- a/apps/readest-app/public/locales/de/translation.json
+++ b/apps/readest-app/public/locales/de/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "RSVP kann nicht gestartet werden",
   "RSVP not supported for PDF": "RSVP wird für PDF nicht unterstützt",
   "Select Chapter": "Kapitel auswählen",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Kontext",
   "Ready": "Bereit",
   "Chapter Progress": "Kapitelfortschritt",
diff --git a/apps/readest-app/public/locales/el/translation.json b/apps/readest-app/public/locales/el/translation.json
index ab3b3118..07d435f6 100644
--- a/apps/readest-app/public/locales/el/translation.json
+++ b/apps/readest-app/public/locales/el/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "Αδυναμία έναρξης RSVP",
   "RSVP not supported for PDF": "Το RSVP δεν υποστηρίζεται για PDF",
   "Select Chapter": "Επιλογή Κεφαλαίου",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Πλαίσιο",
   "Ready": "Έτοιμο",
   "Chapter Progress": "Πρόοδος Κεφαλαίου",
diff --git a/apps/readest-app/public/locales/es/translation.json b/apps/readest-app/public/locales/es/translation.json
index 3764dfae..16a9c1f9 100644
--- a/apps/readest-app/public/locales/es/translation.json
+++ b/apps/readest-app/public/locales/es/translation.json
@@ -988,7 +988,6 @@
   "Unable to start RSVP": "No se puede iniciar RSVP",
   "RSVP not supported for PDF": "RSVP no es compatible con PDF",
   "Select Chapter": "Seleccionar capítulo",
-  "{{number}} WPM": "{{number}} PPM",
   "Context": "Contexto",
   "Ready": "Listo",
   "Chapter Progress": "Progreso del capítulo",
diff --git a/apps/readest-app/public/locales/fa/translation.json b/apps/readest-app/public/locales/fa/translation.json
index 653c1586..6ab14089 100644
--- a/apps/readest-app/public/locales/fa/translation.json
+++ b/apps/readest-app/public/locales/fa/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "قادر به شروع RSVP نیست",
   "RSVP not supported for PDF": "RSVP برای PDF پشتیبانی نمی‌شود",
   "Select Chapter": "انتخاب فصل",
-  "{{number}} WPM": "{{number}} کلمه در دقیقه",
   "Context": "زمینه",
   "Ready": "آماده",
   "Chapter Progress": "پیشرفت فصل",
diff --git a/apps/readest-app/public/locales/fr/translation.json b/apps/readest-app/public/locales/fr/translation.json
index 756cbdd8..f8a10958 100644
--- a/apps/readest-app/public/locales/fr/translation.json
+++ b/apps/readest-app/public/locales/fr/translation.json
@@ -988,7 +988,6 @@
   "Unable to start RSVP": "Impossible de démarrer RSVP",
   "RSVP not supported for PDF": "RSVP non pris en charge pour PDF",
   "Select Chapter": "Sélectionner le chapitre",
-  "{{number}} WPM": "{{number}} MPM",
   "Context": "Contexte",
   "Ready": "Prêt",
   "Chapter Progress": "Progression du chapitre",
diff --git a/apps/readest-app/public/locales/he/translation.json b/apps/readest-app/public/locales/he/translation.json
index 91d43329..37d997b5 100644
--- a/apps/readest-app/public/locales/he/translation.json
+++ b/apps/readest-app/public/locales/he/translation.json
@@ -487,7 +487,6 @@
   "Select Chapter": "בחר פרק",
   "Speed Reading": "קריאה מהירה",
   "Close Speed Reading": "סגור קריאה מהירה",
-  "{{number}} WPM": "{{number}} מילים לדקה",
   "Context": "הקשר",
   "Ready": "מוכן",
   "Chapter Progress": "התקדמות הפרק",
diff --git a/apps/readest-app/public/locales/hi/translation.json b/apps/readest-app/public/locales/hi/translation.json
index 08013c7b..2c449aad 100644
--- a/apps/readest-app/public/locales/hi/translation.json
+++ b/apps/readest-app/public/locales/hi/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "RSVP शुरू करने में असमर्थ",
   "RSVP not supported for PDF": "PDF के लिए RSVP समर्थित नहीं है",
   "Select Chapter": "अध्याय चुनें",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "संदर्भ",
   "Ready": "तैयार",
   "Chapter Progress": "अध्याय प्रगति",
diff --git a/apps/readest-app/public/locales/id/translation.json b/apps/readest-app/public/locales/id/translation.json
index 7584b944..34bc857e 100644
--- a/apps/readest-app/public/locales/id/translation.json
+++ b/apps/readest-app/public/locales/id/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "Tidak dapat memulai RSVP",
   "RSVP not supported for PDF": "RSVP tidak didukung untuk PDF",
   "Select Chapter": "Pilih Bab",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Konteks",
   "Ready": "Siap",
   "Chapter Progress": "Kemajuan Bab",
diff --git a/apps/readest-app/public/locales/it/translation.json b/apps/readest-app/public/locales/it/translation.json
index 12c685ef..f294e9eb 100644
--- a/apps/readest-app/public/locales/it/translation.json
+++ b/apps/readest-app/public/locales/it/translation.json
@@ -988,7 +988,6 @@
   "Unable to start RSVP": "Impossibile avviare RSVP",
   "RSVP not supported for PDF": "RSVP non supportato per PDF",
   "Select Chapter": "Seleziona capitolo",
-  "{{number}} WPM": "{{number}} PPM",
   "Context": "Contesto",
   "Ready": "Pronto",
   "Chapter Progress": "Progresso capitolo",
diff --git a/apps/readest-app/public/locales/ja/translation.json b/apps/readest-app/public/locales/ja/translation.json
index 7ffc1d9c..1c0de99e 100644
--- a/apps/readest-app/public/locales/ja/translation.json
+++ b/apps/readest-app/public/locales/ja/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "RSVPを起動できません",
   "RSVP not supported for PDF": "PDFはRSVPに対応していません",
   "Select Chapter": "章を選択",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "コンテキスト",
   "Ready": "準備完了",
   "Chapter Progress": "章の進捗",
diff --git a/apps/readest-app/public/locales/ko/translation.json b/apps/readest-app/public/locales/ko/translation.json
index ed378062..8b412217 100644
--- a/apps/readest-app/public/locales/ko/translation.json
+++ b/apps/readest-app/public/locales/ko/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "RSVP를 시작할 수 없습니다",
   "RSVP not supported for PDF": "PDF는 RSVP를 지원하지 않습니다",
   "Select Chapter": "챕터 선택",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "문맥",
   "Ready": "준비됨",
   "Chapter Progress": "챕터 진행 상황",
diff --git a/apps/readest-app/public/locales/ms/translation.json b/apps/readest-app/public/locales/ms/translation.json
index 81c11021..55d7d096 100644
--- a/apps/readest-app/public/locales/ms/translation.json
+++ b/apps/readest-app/public/locales/ms/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "Tidak dapat memulakan RSVP",
   "RSVP not supported for PDF": "RSVP tidak disokong untuk PDF",
   "Select Chapter": "Pilih Bab",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Konteks",
   "Ready": "Sedia",
   "Chapter Progress": "Kemajuan Bab",
diff --git a/apps/readest-app/public/locales/nl/translation.json b/apps/readest-app/public/locales/nl/translation.json
index 1d832c33..506d3c48 100644
--- a/apps/readest-app/public/locales/nl/translation.json
+++ b/apps/readest-app/public/locales/nl/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "Kan RSVP niet starten",
   "RSVP not supported for PDF": "RSVP niet ondersteund voor PDF",
   "Select Chapter": "Hoofdstuk selecteren",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Context",
   "Ready": "Klaar",
   "Chapter Progress": "Hoofdstukvoortgang",
diff --git a/apps/readest-app/public/locales/pl/translation.json b/apps/readest-app/public/locales/pl/translation.json
index 53318e6f..4da39a79 100644
--- a/apps/readest-app/public/locales/pl/translation.json
+++ b/apps/readest-app/public/locales/pl/translation.json
@@ -1000,7 +1000,6 @@
   "Unable to start RSVP": "Nie można uruchomić RSVP",
   "RSVP not supported for PDF": "RSVP nie jest obsługiwane dla PDF",
   "Select Chapter": "Wybierz rozdział",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Kontekst",
   "Ready": "Gotowy",
   "Chapter Progress": "Postęp rozdziału",
diff --git a/apps/readest-app/public/locales/pt/translation.json b/apps/readest-app/public/locales/pt/translation.json
index 3c96b738..8eb5e006 100644
--- a/apps/readest-app/public/locales/pt/translation.json
+++ b/apps/readest-app/public/locales/pt/translation.json
@@ -988,7 +988,6 @@
   "Unable to start RSVP": "Não foi possível iniciar o RSVP",
   "RSVP not supported for PDF": "RSVP não suportado para PDF",
   "Select Chapter": "Selecionar capítulo",
-  "{{number}} WPM": "{{number}} PPM",
   "Context": "Contexto",
   "Ready": "Pronto",
   "Chapter Progress": "Progresso do capítulo",
diff --git a/apps/readest-app/public/locales/ru/translation.json b/apps/readest-app/public/locales/ru/translation.json
index 22d32195..5dd8a855 100644
--- a/apps/readest-app/public/locales/ru/translation.json
+++ b/apps/readest-app/public/locales/ru/translation.json
@@ -1000,7 +1000,6 @@
   "Unable to start RSVP": "Не удалось запустить RSVP",
   "RSVP not supported for PDF": "RSVP не поддерживается для PDF",
   "Select Chapter": "Выбрать главу",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Контекст",
   "Ready": "Готово",
   "Chapter Progress": "Прогресс главы",
diff --git a/apps/readest-app/public/locales/si/translation.json b/apps/readest-app/public/locales/si/translation.json
index 4ef870f1..04dd803e 100644
--- a/apps/readest-app/public/locales/si/translation.json
+++ b/apps/readest-app/public/locales/si/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "RSVP ආරම්භ කිරීමට නොහැක",
   "RSVP not supported for PDF": "PDF සඳහා RSVP සහාය නොදක්වයි",
   "Select Chapter": "පරිච්ඡේදය තෝරන්න",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "සන්දර්භය",
   "Ready": "සූදානම්",
   "Chapter Progress": "පරිච්ඡේදයේ ප්‍රගතිය",
diff --git a/apps/readest-app/public/locales/sv/translation.json b/apps/readest-app/public/locales/sv/translation.json
index af6f69d2..4af0acfb 100644
--- a/apps/readest-app/public/locales/sv/translation.json
+++ b/apps/readest-app/public/locales/sv/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "Kunde inte starta RSVP",
   "RSVP not supported for PDF": "RSVP stöds inte för PDF",
   "Select Chapter": "Välj kapitel",
-  "{{number}} WPM": "{{number}} ord/min",
   "Context": "Sammanhang",
   "Ready": "Klar",
   "Chapter Progress": "Kapitelframsteg",
diff --git a/apps/readest-app/public/locales/ta/translation.json b/apps/readest-app/public/locales/ta/translation.json
index 936aaea6..7b7ae459 100644
--- a/apps/readest-app/public/locales/ta/translation.json
+++ b/apps/readest-app/public/locales/ta/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "RSVP-ஐத் தொடங்க முடியவில்லை",
   "RSVP not supported for PDF": "PDF-க்கு RSVP ஆதரவு இல்லை",
   "Select Chapter": "அத்தியாயத்தைத் தேர்ந்தெடு",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "சூழல்",
   "Ready": "தயார்",
   "Chapter Progress": "அத்தியாய முன்னேற்றம்",
diff --git a/apps/readest-app/public/locales/th/translation.json b/apps/readest-app/public/locales/th/translation.json
index 36e0ee19..e1114ba3 100644
--- a/apps/readest-app/public/locales/th/translation.json
+++ b/apps/readest-app/public/locales/th/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "ไม่สามารถเริ่ม RSVP ได้",
   "RSVP not supported for PDF": "ไม่รองรับ RSVP สำหรับ PDF",
   "Select Chapter": "เลือกบท",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "บริบท",
   "Ready": "พร้อม",
   "Chapter Progress": "ความคืบหน้าของบท",
diff --git a/apps/readest-app/public/locales/tr/translation.json b/apps/readest-app/public/locales/tr/translation.json
index 580ab6ee..adad59c2 100644
--- a/apps/readest-app/public/locales/tr/translation.json
+++ b/apps/readest-app/public/locales/tr/translation.json
@@ -976,7 +976,6 @@
   "Unable to start RSVP": "RSVP başlatılamadı",
   "RSVP not supported for PDF": "PDF için RSVP desteklenmiyor",
   "Select Chapter": "Bölüm Seç",
-  "{{number}} WPM": "{{number}} Kelime/Dakika",
   "Context": "Bağlam",
   "Ready": "Hazır",
   "Chapter Progress": "Bölüm İlerlemesi",
diff --git a/apps/readest-app/public/locales/uk/translation.json b/apps/readest-app/public/locales/uk/translation.json
index bb41cacd..4d320ef1 100644
--- a/apps/readest-app/public/locales/uk/translation.json
+++ b/apps/readest-app/public/locales/uk/translation.json
@@ -1000,7 +1000,6 @@
   "Unable to start RSVP": "Не вдалося запустити RSVP",
   "RSVP not supported for PDF": "RSVP не підтримується для PDF",
   "Select Chapter": "Вибрати розділ",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Контекст",
   "Ready": "Готово",
   "Chapter Progress": "Прогрес розділу",
diff --git a/apps/readest-app/public/locales/vi/translation.json b/apps/readest-app/public/locales/vi/translation.json
index fb5ee5e2..74c4fe45 100644
--- a/apps/readest-app/public/locales/vi/translation.json
+++ b/apps/readest-app/public/locales/vi/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "Không thể bắt đầu RSVP",
   "RSVP not supported for PDF": "RSVP không được hỗ trợ cho PDF",
   "Select Chapter": "Chọn chương",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "Ngữ cảnh",
   "Ready": "Sẵn sàng",
   "Chapter Progress": "Tiến độ chương",
diff --git a/apps/readest-app/public/locales/zh-CN/translation.json b/apps/readest-app/public/locales/zh-CN/translation.json
index 5cff2d00..9a6d5467 100644
--- a/apps/readest-app/public/locales/zh-CN/translation.json
+++ b/apps/readest-app/public/locales/zh-CN/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "无法启动 RSVP",
   "RSVP not supported for PDF": "PDF 不支持 RSVP",
   "Select Chapter": "选择章节",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "上下文",
   "Ready": "准备就绪",
   "Chapter Progress": "章节进度",
diff --git a/apps/readest-app/public/locales/zh-TW/translation.json b/apps/readest-app/public/locales/zh-TW/translation.json
index efde7a4a..860c2ff8 100644
--- a/apps/readest-app/public/locales/zh-TW/translation.json
+++ b/apps/readest-app/public/locales/zh-TW/translation.json
@@ -964,7 +964,6 @@
   "Unable to start RSVP": "無法啟動 RSVP",
   "RSVP not supported for PDF": "PDF 不支援 RSVP",
   "Select Chapter": "選擇章節",
-  "{{number}} WPM": "{{number}} WPM",
   "Context": "上下文",
   "Ready": "準備就緒",
   "Chapter Progress": "章節進度",
diff --git a/apps/readest-app/src/app/library/components/ViewMenu.tsx b/apps/readest-app/src/app/library/components/ViewMenu.tsx
index b43f3d7e..63c14f38 100644
--- a/apps/readest-app/src/app/library/components/ViewMenu.tsx
+++ b/apps/readest-app/src/app/library/components/ViewMenu.tsx
@@ -55,6 +55,7 @@ const ViewMenu: React.FC<ViewMenuProps> = ({ setIsDropdownOpen }) => {
     { label: _('Title'), value: LibrarySortByType.Title },
     { label: _('Author'), value: LibrarySortByType.Author },
     { label: _('Format'), value: LibrarySortByType.Format },
+    { label: _('Series'), value: LibrarySortByType.Series },
     { label: _('Date Read'), value: LibrarySortByType.Updated },
     { label: _('Date Added'), value: LibrarySortByType.Created },
     { label: _('Date Published'), value: LibrarySortByType.Published },
diff --git a/apps/readest-app/src/app/library/utils/libraryUtils.ts b/apps/readest-app/src/app/library/utils/libraryUtils.ts
index fa0d1fb7..72b90b72 100644
--- a/apps/readest-app/src/app/library/utils/libraryUtils.ts
+++ b/apps/readest-app/src/app/library/utils/libraryUtils.ts
@@ -105,6 +105,8 @@ export const createBookSorter = (sortBy: string, uiLanguage: string) => (a: Book
       return new Date(a.createdAt).getTime() - new Date(b.createdAt).getTime();
     case LibrarySortByType.Format:
       return a.format.localeCompare(b.format, uiLanguage || navigator.language);
+    case LibrarySortByType.Series:
+      return (a.metadata?.seriesIndex || 0) - (b.metadata?.seriesIndex || 0);
     case LibrarySortByType.Published:
       const aPublished = a.metadata?.published || '0001-01-01';
       const bPublished = b.metadata?.published || '0001-01-01';
diff --git a/apps/readest-app/src/components/metadata/BookDetailView.tsx b/apps/readest-app/src/components/metadata/BookDetailView.tsx
index 3611c025..241d5d84 100644
--- a/apps/readest-app/src/components/metadata/BookDetailView.tsx
+++ b/apps/readest-app/src/components/metadata/BookDetailView.tsx
@@ -250,7 +250,7 @@ const BookDetailView: React.FC<BookDetailViewProps> = ({
                   <span className='font-bold'>{_('Series')}</span>
                   <p className='text-neutral-content text-sm'>{metadata?.series || _('Unknown')}</p>
                 </div>
-                <div className='overflow-hidden'>
+                <div className='overflow-hidden pe-1 text-end'>
                   <span className='font-bold'>{_('Series Index')}</span>
                   <p className='text-neutral-content text-sm'>
                     {metadata?.seriesIndex || _('Unknown')}
diff --git a/apps/readest-app/src/libs/document.ts b/apps/readest-app/src/libs/document.ts
index ef02123d..2c706214 100644
--- a/apps/readest-app/src/libs/document.ts
+++ b/apps/readest-app/src/libs/document.ts
@@ -1,5 +1,5 @@
 import { BookFormat } from '@/types/book';
-import { Contributor, Identifier, LanguageMap } from '@/utils/book';
+import { Collection, Contributor, Identifier, LanguageMap } from '@/utils/book';
 import * as epubcfi from 'foliate-js/epubcfi.js';
 
 export const CFI = epubcfi;
@@ -47,6 +47,10 @@ export type BookMetadata = {
   subject?: string | string[] | Contributor;
   identifier?: string;
   altIdentifier?: string | string[] | Identifier;
+  belongsTo?: {
+    collection?: Array<Collection> | Collection;
+    series?: Array<Collection> | Collection;
+  };
 
   subtitle?: string;
   series?: string;
diff --git a/apps/readest-app/src/services/appService.ts b/apps/readest-app/src/services/appService.ts
index 28b93282..c63a5c9a 100644
--- a/apps/readest-app/src/services/appService.ts
+++ b/apps/readest-app/src/services/appService.ts
@@ -408,12 +408,22 @@ export abstract class BaseAppService implements AppService {
         sourceTitle: formatTitle(loadedBook.metadata.title),
         primaryLanguage,
         author: formatAuthors(loadedBook.metadata.author, primaryLanguage),
+        metadata: loadedBook.metadata,
         createdAt: existingBook ? existingBook.createdAt : Date.now(),
         uploadedAt: existingBook ? existingBook.uploadedAt : null,
         deletedAt: transient ? Date.now() : null,
         downloadedAt: Date.now(),
         updatedAt: Date.now(),
       };
+      // update series info from metadata
+      if (book.metadata?.belongsTo?.series) {
+        const belongsTo = book.metadata.belongsTo.series;
+        const series = Array.isArray(belongsTo) ? belongsTo[0] : belongsTo;
+        if (series) {
+          book.metadata.series = formatTitle(series.name);
+          book.metadata.seriesIndex = parseFloat(series.position || '0');
+        }
+      }
       // update book metadata when reimporting the same book
       if (existingBook) {
         existingBook.format = book.format;
@@ -421,6 +431,7 @@ export abstract class BaseAppService implements AppService {
         existingBook.sourceTitle = existingBook.sourceTitle ?? book.sourceTitle;
         existingBook.author = existingBook.author ?? book.author;
         existingBook.primaryLanguage = existingBook.primaryLanguage ?? book.primaryLanguage;
+        existingBook.metadata = book.metadata;
         existingBook.downloadedAt = Date.now();
       }
 
diff --git a/apps/readest-app/src/store/readerStore.ts b/apps/readest-app/src/store/readerStore.ts
index ad2133f9..4b43b5d4 100644
--- a/apps/readest-app/src/store/readerStore.ts
+++ b/apps/readest-app/src/store/readerStore.ts
@@ -180,6 +180,16 @@ export const useReaderStore = create<ReaderStore>((set, get) => ({
       const primaryLanguage = getPrimaryLanguage(bookDoc.metadata.language);
       book.primaryLanguage = book.primaryLanguage ?? primaryLanguage;
       book.metadata = book.metadata ?? bookDoc.metadata;
+
+      // Update series info from metadata
+      if (bookDoc.metadata.belongsTo?.series) {
+        const belongsTo = bookDoc.metadata.belongsTo.series;
+        const series = Array.isArray(belongsTo) ? belongsTo[0] : belongsTo;
+        if (series) {
+          book.metadata.series = formatTitle(series.name);
+          book.metadata.seriesIndex = parseFloat(series.position || '0');
+        }
+      }
       // TODO: uncomment this when we can ensure metaHash is correctly generated for all books
       // book.metaHash = book.metaHash ?? getMetadataHash(bookDoc.metadata);
       book.metaHash = getMetadataHash(bookDoc.metadata);
diff --git a/apps/readest-app/src/types/settings.ts b/apps/readest-app/src/types/settings.ts
index 8f91a3fa..448e4204 100644
--- a/apps/readest-app/src/types/settings.ts
+++ b/apps/readest-app/src/types/settings.ts
@@ -13,6 +13,7 @@ export const LibrarySortByType = {
   Author: 'author',
   Updated: 'updated',
   Created: 'created',
+  Series: 'series',
   Size: 'size',
   Format: 'format',
   Published: 'published',
diff --git a/apps/readest-app/src/utils/book.ts b/apps/readest-app/src/utils/book.ts
index 283466b7..86bdf0a8 100644
--- a/apps/readest-app/src/utils/book.ts
+++ b/apps/readest-app/src/utils/book.ts
@@ -56,6 +56,11 @@ export interface Contributor {
   name: LanguageMap;
 }
 
+export interface Collection {
+  name: string;
+  position?: string;
+}
+
 const formatLanguageMap = (x: string | LanguageMap, defaultLang = false): string => {
   const userLang = getUserLang();
   if (!x) return '';
diff --git a/packages/foliate-js b/packages/foliate-js
index e304090c..21293c82 160000
--- a/packages/foliate-js
+++ b/packages/foliate-js
@@ -1 +1 @@
-Subproject commit e304090ce292f594f45b26bfa9066024e7cf287f
+Subproject commit 21293c82b8a3c55798c439075184794ca088c924