diff --git a/api/prisma/schema.prisma b/api/prisma/schema.prisma
index d7a77b8..7ecca71 100644
--- a/api/prisma/schema.prisma
+++ b/api/prisma/schema.prisma
@@ -32,6 +32,8 @@ model Game {
   coverImage   String?
   tags         String[]
   links        Link[]
+  series       String?
+  seriesOrder  Int?      @db.Int
   createdAt    DateTime  @default(now())
   updatedAt    DateTime  @updatedAt
   comments     Comment[]
@@ -58,6 +60,8 @@ model Book {
   coverImage   String?
   tags         String[]
   links        Link[]
+  series       String?
+  seriesOrder  Int?      @db.Int
   createdAt    DateTime  @default(now())
   updatedAt    DateTime  @updatedAt
   comments     Comment[]
diff --git a/api/src/app/routes/books/index.ts b/api/src/app/routes/books/index.ts
index 2aea0fe..f6991d3 100644
--- a/api/src/app/routes/books/index.ts
+++ b/api/src/app/routes/books/index.ts
@@ -24,6 +24,17 @@ const booksRoutes: FastifyPluginAsync = async (app) => {
     return bookService.getAllBooks();
   });
 
+  /**
+   * Get all books in a series (public route).
+   */
+  app.get<{ Params: { seriesName: string }; Reply: Book[] }>(
+    "/series/:seriesName",
+    async (request) => {
+      const { seriesName } = request.params;
+      return bookService.getBooksBySeries(seriesName);
+    }
+  );
+
   /**
    * Get single book by ID (public route).
    */
diff --git a/api/src/app/routes/games/index.ts b/api/src/app/routes/games/index.ts
index 2d00886..eef98a0 100644
--- a/api/src/app/routes/games/index.ts
+++ b/api/src/app/routes/games/index.ts
@@ -22,6 +22,15 @@ const gamesRoutes: FastifyPluginAsync = async (app) => {
     return gameService.getAllGames();
   });
 
+  // Get all games in a series (public route)
+  app.get<{ Params: { seriesName: string }; Reply: Game[] }>(
+    "/series/:seriesName",
+    async (request) => {
+      const { seriesName } = request.params;
+      return gameService.getGamesBySeries(seriesName);
+    }
+  );
+
   // Get single game (public route)
   app.get<{ Params: { id: string }; Reply: Game | null }>(
     "/:id",
diff --git a/api/src/app/services/book.service.ts b/api/src/app/services/book.service.ts
index afb97bc..1e396af 100644
--- a/api/src/app/services/book.service.ts
+++ b/api/src/app/services/book.service.ts
@@ -56,6 +56,28 @@ export class BookService {
     };
   }
 
+  /**
+   * Get all books in a series, ordered by seriesOrder.
+   */
+  async getBooksBySeries(seriesName: string): Promise<Book[]> {
+    const books = await this.prisma.book.findMany({
+      where: { series: seriesName },
+      orderBy: { seriesOrder: "asc" },
+    });
+
+    return books.map((book) => ({
+      ...book,
+      status: book.status as unknown as BookStatus,
+      dateAdded: book.dateAdded,
+      dateStarted: book.dateStarted || undefined,
+      dateFinished: book.dateFinished || undefined,
+      tags: book.tags ?? [],
+      links: book.links ?? [],
+      createdAt: book.createdAt,
+      updatedAt: book.updatedAt,
+    }));
+  }
+
   /**
    * Create new book.
    */
diff --git a/api/src/app/services/game.service.ts b/api/src/app/services/game.service.ts
index d748c22..66a9cdf 100644
--- a/api/src/app/services/game.service.ts
+++ b/api/src/app/services/game.service.ts
@@ -58,6 +58,29 @@ export class GameService {
     };
   }
 
+  /**
+   * Get all games in a series, ordered by seriesOrder.
+   */
+  async getGamesBySeries(seriesName: string): Promise<Game[]> {
+    const games = await this.prisma.game.findMany({
+      where: { series: seriesName },
+      orderBy: { seriesOrder: "asc" },
+    });
+
+    return games.map((game) => ({
+      ...game,
+      status: game.status as unknown as GameStatus,
+      dateAdded: game.dateAdded,
+      dateStarted: game.dateStarted || undefined,
+      dateCompleted: game.dateCompleted || undefined,
+      dateFinished: game.dateFinished || undefined,
+      tags: game.tags ?? [],
+      links: game.links ?? [],
+      createdAt: game.createdAt,
+      updatedAt: game.updatedAt,
+    }));
+  }
+
   /**
    * Create new game.
    */
diff --git a/apps/frontend/src/app/components/books/books-list.component.ts b/apps/frontend/src/app/components/books/books-list.component.ts
index bcdbb50..ceda6ed 100644
--- a/apps/frontend/src/app/components/books/books-list.component.ts
+++ b/apps/frontend/src/app/components/books/books-list.component.ts
@@ -127,6 +127,29 @@ import { Book, BookStatus, CreateBookDto, UpdateBookDto, Comment, SuggestionEnti
             ></textarea>
           </div>
 
+          <div class="form-group">
+            <label for="series">Series (optional)</label>
+            <input
+              type="text"
+              id="series"
+              [(ngModel)]="newBook.series"
+              name="series"
+              placeholder="e.g., Harry Potter"
+            >
+          </div>
+
+          <div class="form-group">
+            <label for="seriesOrder">Series Order (optional)</label>
+            <input
+              type="number"
+              id="seriesOrder"
+              [(ngModel)]="newBook.seriesOrder"
+              name="seriesOrder"
+              min="1"
+              placeholder="Order in series"
+            >
+          </div>
+
           <div class="form-group">
             <label for="coverImage">Cover Image (max 500KB)</label>
             <input
@@ -289,6 +312,29 @@ import { Book, BookStatus, CreateBookDto, UpdateBookDto, Comment, SuggestionEnti
             ></textarea>
           </div>
 
+          <div class="form-group">
+            <label for="edit-series">Series (optional)</label>
+            <input
+              type="text"
+              id="edit-series"
+              [(ngModel)]="editBook.series"
+              name="series"
+              placeholder="e.g., Harry Potter"
+            >
+          </div>
+
+          <div class="form-group">
+            <label for="edit-seriesOrder">Series Order (optional)</label>
+            <input
+              type="number"
+              id="edit-seriesOrder"
+              [(ngModel)]="editBook.seriesOrder"
+              name="seriesOrder"
+              min="1"
+              placeholder="Order in series"
+            >
+          </div>
+
           <div class="form-group">
             <label for="edit-coverImage">Cover Image (max 500KB)</label>
             <input
diff --git a/apps/frontend/src/app/components/games/games-list.component.ts b/apps/frontend/src/app/components/games/games-list.component.ts
index 430c4f9..dddb3b3 100644
--- a/apps/frontend/src/app/components/games/games-list.component.ts
+++ b/apps/frontend/src/app/components/games/games-list.component.ts
@@ -115,6 +115,29 @@ import { Game, GameStatus, CreateGameDto, UpdateGameDto, Comment, SuggestionEnti
             ></textarea>
           </div>
 
+          <div class="form-group">
+            <label for="series">Series (optional)</label>
+            <input
+              type="text"
+              id="series"
+              [(ngModel)]="newGame.series"
+              name="series"
+              placeholder="e.g., The Legend of Zelda"
+            >
+          </div>
+
+          <div class="form-group">
+            <label for="seriesOrder">Series Order (optional)</label>
+            <input
+              type="number"
+              id="seriesOrder"
+              [(ngModel)]="newGame.seriesOrder"
+              name="seriesOrder"
+              min="1"
+              placeholder="Order in series"
+            >
+          </div>
+
           <div class="form-group">
             <label for="coverImage">Box Art (max 500KB)</label>
             <input
@@ -265,6 +288,29 @@ import { Game, GameStatus, CreateGameDto, UpdateGameDto, Comment, SuggestionEnti
             ></textarea>
           </div>
 
+          <div class="form-group">
+            <label for="edit-series">Series (optional)</label>
+            <input
+              type="text"
+              id="edit-series"
+              [(ngModel)]="editGame.series"
+              name="series"
+              placeholder="e.g., The Legend of Zelda"
+            >
+          </div>
+
+          <div class="form-group">
+            <label for="edit-seriesOrder">Series Order (optional)</label>
+            <input
+              type="number"
+              id="edit-seriesOrder"
+              [(ngModel)]="editGame.seriesOrder"
+              name="seriesOrder"
+              min="1"
+              placeholder="Order in series"
+            >
+          </div>
+
           <div class="form-group">
             <label for="edit-coverImage">Box Art (max 500KB)</label>
             <input
diff --git a/shared-types/src/lib/book.types.ts b/shared-types/src/lib/book.types.ts
index 87ddc26..9f856ec 100644
--- a/shared-types/src/lib/book.types.ts
+++ b/shared-types/src/lib/book.types.ts
@@ -27,6 +27,8 @@ interface Book {
   coverImage?:   string;
   tags:          Array<string>;
   links:         Array<Link>;
+  series?:       string;
+  seriesOrder?:  number;
   createdAt:     Date;
   updatedAt:     Date;
 }
@@ -43,6 +45,8 @@ interface CreateBookDto {
   coverImage?:   string;
   tags?:         Array<string>;
   links?:        Array<Link>;
+  series?:       string;
+  seriesOrder?:  number;
 }
 
 interface UpdateBookDto extends Partial<CreateBookDto> {
diff --git a/shared-types/src/lib/game.types.ts b/shared-types/src/lib/game.types.ts
index 38949ac..4689816 100644
--- a/shared-types/src/lib/game.types.ts
+++ b/shared-types/src/lib/game.types.ts
@@ -27,6 +27,8 @@ interface Game {
   coverImage?:    string;
   tags:           Array<string>;
   links:          Array<Link>;
+  series?:        string;
+  seriesOrder?:   number;
   createdAt:      Date;
   updatedAt:      Date;
 }
@@ -42,6 +44,8 @@ interface CreateGameDto {
   coverImage?:   string;
   tags?:         Array<string>;
   links?:        Array<Link>;
+  series?:       string;
+  seriesOrder?:  number;
 }
 
 interface UpdateGameDto extends Partial<CreateGameDto> {