diff --git a/src/components/library/LibraryGrid.tsx b/src/components/library/LibraryGrid.tsx
index 9322d24..3c5b7d4 100644
--- a/src/components/library/LibraryGrid.tsx
+++ b/src/components/library/LibraryGrid.tsx
@@ -63,6 +63,8 @@ function LibraryCard({ library, onClick }: LibraryCardProps) {
             alt={`Couverture de ${library.name}`}
             sizes="(max-width: 640px) 100vw, (max-width: 1024px) 50vw, 33vw"
             quality={25}
+            readBooks={library.booksReadCount}
+            totalBooks={library.booksCount}
           />
         </div>
       </div>
diff --git a/src/components/library/SeriesGrid.tsx b/src/components/library/SeriesGrid.tsx
index b1067ce..9bd04ff 100644
--- a/src/components/library/SeriesGrid.tsx
+++ b/src/components/library/SeriesGrid.tsx
@@ -65,6 +65,8 @@ export function SeriesGrid({ series }: SeriesGridProps) {
             id={series.id}
             alt={`Couverture de ${series.metadata.title}`}
             isCompleted={series.booksCount === series.booksReadCount}
+            readBooks={series.booksReadCount}
+            totalBooks={series.booksCount}
           />
           <div className="absolute inset-x-0 bottom-0 bg-gradient-to-t from-black/60 to-transparent p-4 space-y-2 translate-y-full group-hover:translate-y-0 transition-transform duration-200">
             <h3 className="font-medium text-sm text-white line-clamp-2">{series.metadata.title}</h3>
diff --git a/src/components/series/BookGrid.tsx b/src/components/series/BookGrid.tsx
index a039b0a..e923eae 100644
--- a/src/components/series/BookGrid.tsx
+++ b/src/components/series/BookGrid.tsx
@@ -6,6 +6,7 @@ import { Cover } from "@/components/ui/cover";
 import { MarkAsReadButton } from "@/components/ui/mark-as-read-button";
 import { MarkAsUnreadButton } from "@/components/ui/mark-as-unread-button";
 import { BookOfflineButton } from "@/components/ui/book-offline-button";
+import { ProgressBar } from "@/components/ui/progress-bar";
 import { useState, useEffect } from "react";
 
 interface BookGridProps {
@@ -97,6 +98,7 @@ export function BookGrid({ books, onBookClick }: BookGridProps) {
       {localBooks.map((book) => {
         const statusInfo = getReadingStatusInfo(book);
         const isRead = book.readProgress?.completed || false;
+        const currentPage = book.readProgress?.page || 0;
 
         return (
           <div
@@ -112,6 +114,8 @@ export function BookGrid({ books, onBookClick }: BookGridProps) {
                 id={book.id}
                 alt={`Couverture de ${book.metadata.title || `Tome ${book.metadata.number}`}`}
                 isCompleted={isRead}
+                currentPage={currentPage}
+                totalPages={book.media.pagesCount}
               />
             </button>
 
diff --git a/src/components/ui/cover.tsx b/src/components/ui/cover.tsx
index 39e0e5d..05bacba 100644
--- a/src/components/ui/cover.tsx
+++ b/src/components/ui/cover.tsx
@@ -1,6 +1,7 @@
 import { CoverClient } from "./cover-client";
+import { ProgressBar } from "./progress-bar";
 
-interface CoverProps {
+interface BaseCoverProps {
   type: "series" | "book";
   id: string;
   alt?: string;
@@ -10,6 +11,20 @@ interface CoverProps {
   isCompleted?: boolean;
 }
 
+interface BookCoverProps extends BaseCoverProps {
+  type: "book";
+  currentPage?: number;
+  totalPages?: number;
+}
+
+interface SeriesCoverProps extends BaseCoverProps {
+  type: "series";
+  readBooks?: number;
+  totalBooks?: number;
+}
+
+type CoverProps = BookCoverProps | SeriesCoverProps;
+
 function getImageUrl(type: "series" | "book", id: string) {
   if (type === "series") {
     return `/api/komga/images/series/${id}/thumbnail`;
@@ -17,25 +32,46 @@ function getImageUrl(type: "series" | "book", id: string) {
   return `/api/komga/images/books/${id}/thumbnail`;
 }
 
-export function Cover({
-  type,
-  id,
-  alt = "Image de couverture",
-  className,
-  quality = 80,
-  sizes = "100vw",
-  isCompleted = false,
-}: CoverProps) {
+export function Cover(props: CoverProps) {
+  const {
+    type,
+    id,
+    alt = "Image de couverture",
+    className,
+    quality = 80,
+    sizes = "100vw",
+    isCompleted = false,
+  } = props;
+
   const imageUrl = getImageUrl(type, id);
 
+  const showProgress = () => {
+    if (type === "book") {
+      const { currentPage, totalPages } = props;
+      return currentPage && totalPages && currentPage > 0 && !isCompleted ? (
+        <ProgressBar progress={currentPage} total={totalPages} />
+      ) : null;
+    }
+    
+    if (type === "series") {
+      const { readBooks, totalBooks } = props;
+      return readBooks && totalBooks && readBooks > 0 && !isCompleted ? (
+        <ProgressBar progress={readBooks} total={totalBooks} />
+      ) : null;
+    }
+  };
+
   return (
-    <CoverClient
-      imageUrl={imageUrl}
-      alt={alt}
-      className={className}
-      quality={quality}
-      sizes={sizes}
-      isCompleted={isCompleted}
-    />
+    <div className="relative w-full h-full">
+      <CoverClient
+        imageUrl={imageUrl}
+        alt={alt}
+        className={className}
+        quality={quality}
+        sizes={sizes}
+        isCompleted={isCompleted}
+      />
+      {showProgress()}
+    </div>
   );
 }
diff --git a/src/components/ui/progress-bar.tsx b/src/components/ui/progress-bar.tsx
new file mode 100644
index 0000000..4a5dd09
--- /dev/null
+++ b/src/components/ui/progress-bar.tsx
@@ -0,0 +1,19 @@
+interface ProgressBarProps {
+  progress: number;
+  total: number;
+}
+
+export function ProgressBar({ progress, total }: ProgressBarProps) {
+  const percentage = Math.round((progress / total) * 100);
+  
+  return (
+    <div className="absolute bottom-0 left-0 right-0 px-3 py-2 bg-black/50 backdrop-blur-sm border-t border-white/10">
+      <div className="h-2 bg-white/30 rounded-full overflow-hidden">
+        <div
+          className="h-full bg-white rounded-full transition-all duration-300"
+          style={{ width: `${percentage}%` }}
+        />
+      </div>
+    </div>
+  );
+}
diff --git a/src/types/komga.ts b/src/types/komga.ts
index 3011318..0cc751d 100644
--- a/src/types/komga.ts
+++ b/src/types/komga.ts
@@ -17,6 +17,8 @@ export interface KomgaLibrary {
   importLastModified: string;
   lastModified: string;
   unavailable: boolean;
+  booksCount: number;
+  booksReadCount: number;
 }
 
 export interface KomgaSeries {