diff --git a/backend/src/db/schema/books.ts b/backend/src/db/schema/books.ts
index d145da4..9a867e1 100644
--- a/backend/src/db/schema/books.ts
+++ b/backend/src/db/schema/books.ts
@@ -4,6 +4,7 @@ import {
   varchar,
   text,
   primaryKey,
+  real,
 } from "drizzle-orm/pg-core";
 
 const books = pgTable("books", {
@@ -20,6 +21,8 @@ const books = pgTable("books", {
   publisher: text("publisher"),
   publishDate: text("publish_date"),
   coverImgUrl: text("cover_img_url"),
+  rating: real("rating"),
+  numRatings: integer("num_ratings"),
 });
 
 const bookGenres = pgTable("book_genres", {
diff --git a/backend/src/db/seed/index.ts b/backend/src/db/seed/index.ts
index 08ac4f7..704c907 100644
--- a/backend/src/db/seed/index.ts
+++ b/backend/src/db/seed/index.ts
@@ -3,6 +3,7 @@ import { resolve, dirname } from "node:path";
 import { fileURLToPath } from "node:url";
 import { parse } from "csv-parse";
 import { db } from "~/db";
+import { parseRating } from "~/db/seed/parseRatings";
 import {
   bookGenres,
   books,
@@ -110,6 +111,7 @@ for await (const book of parser as AsyncIterable<BookRow>) {
     publisher: book.publisher?.trim() || null,
     publishDate: book.publishDate?.trim() || null,
     coverImgUrl: book.coverImg?.trim() || null,
+    ...parseRating(book),
   });
 
   if (book.genres == "[]") {
diff --git a/backend/src/db/seed/parseRatings.ts b/backend/src/db/seed/parseRatings.ts
new file mode 100644
index 0000000..26c8b12
--- /dev/null
+++ b/backend/src/db/seed/parseRatings.ts
@@ -0,0 +1,21 @@
+function parseRating({
+  rating,
+  numRatings,
+}: {
+  rating: string | number;
+  numRatings: string | number;
+}) {
+  const count = Number.parseInt(String(numRatings), 10);
+  const average = Number.parseFloat(String(rating));
+
+  const hasRatings =
+    Number.isFinite(count) && count > 0 && Number.isFinite(average);
+
+  // The dataset uses 0.0 for books without ratings. We store NULL instead, so unrated books are not mistaken for books with the worst rating.
+  return {
+    rating: hasRatings && average > 0 ? average : null,
+    numRatings: Number.isFinite(count) ? count : null,
+  };
+}
+
+export { parseRating };
diff --git a/backend/src/schema/books/resolvers/Query/searchBooks.ts b/backend/src/schema/books/resolvers/Query/searchBooks.ts
index 23f1076..f4f5520 100644
--- a/backend/src/schema/books/resolvers/Query/searchBooks.ts
+++ b/backend/src/schema/books/resolvers/Query/searchBooks.ts
@@ -1,10 +1,12 @@
 import {
   and,
   asc,
+  desc,
   eq,
   exists,
   gte,
   ilike,
+  isNull,
   lte,
   or,
   type SQL,
@@ -54,12 +56,26 @@ export const searchBooks: NonNullable<QueryResolvers["searchBooks"]> = async (
   // can be used both for fetching one page and for counting all matches.
   const filter = and(...conditions);
 
+  const orderBy =
+    args.sortBy === "RATING"
+      ? [
+          // If the book has no rating (isNull returns true), we want it to be sorted last.
+          // Otherwise, the DESC order would put books with no rating first
+          asc(isNull(books.rating)),
+          args.sortDirection === "DESC"
+            ? desc(books.rating)
+            : asc(books.rating),
+          desc(books.numRatings),
+          asc(books.id),
+        ]
+      : [asc(books.id)];
+
   const [foundBooks, totalCount] = await Promise.all([
     db
       .select()
       .from(books)
       .where(filter)
-      .orderBy(asc(books.id))
+      .orderBy(...orderBy)
       .limit(args.limit)
       .offset(args.offset),
     db.$count(books, filter),
diff --git a/backend/src/schema/books/schema.graphql b/backend/src/schema/books/schema.graphql
index e2c0979..82b7ff5 100644
--- a/backend/src/schema/books/schema.graphql
+++ b/backend/src/schema/books/schema.graphql
@@ -13,6 +13,18 @@ type Book {
   publishDate: String
   coverImgUrl: String
   genres: [String!]!
+  rating: Float
+  numRatings: Int
+}
+
+enum BookSortField {
+  ID
+  RATING
+}
+
+enum SortDirection {
+  ASC
+  DESC
 }
 
 extend type Query {
@@ -33,6 +45,8 @@ extend type Query {
     maxPages: Int
     limit: Int = 12
     offset: Int = 0
+    sortBy: BookSortField = ID
+    sortDirection: SortDirection = ASC
   ): BookSearchResult!
 }
 
diff --git a/backend/src/schema/schema.generated.graphqls b/backend/src/schema/schema.generated.graphqls
index 4375f88..f1b4060 100644
--- a/backend/src/schema/schema.generated.graphqls
+++ b/backend/src/schema/schema.generated.graphqls
@@ -8,9 +8,11 @@ type Book {
   id: Int!
   isbn: String!
   language: String
+  numRatings: Int
   pages: Int!
   publishDate: String
   publisher: String
+  rating: Float
   series: String
   title: String!
 }
@@ -20,6 +22,11 @@ type BookSearchResult {
   totalCount: Int!
 }
 
+enum BookSortField {
+  ID
+  RATING
+}
+
 type Mutation {
   addFavoriteBook(bookId: Int!): Book!
   removeFavoriteBook(bookId: Int!): Boolean!
@@ -41,5 +48,10 @@ type Query {
   favoriteGenres(limit: Int = 3): [String!]!
   genres: [String!]!
   languages: [String!]!
-  searchBooks(author: String, bookFormat: String, genres: [String!], language: String, limit: Int = 12, maxPages: Int, minPages: Int, offset: Int = 0, publisher: String, series: String, title: String): BookSearchResult!
+  searchBooks(author: String, bookFormat: String, genres: [String!], language: String, limit: Int = 12, maxPages: Int, minPages: Int, offset: Int = 0, publisher: String, series: String, sortBy: BookSortField = ID, sortDirection: SortDirection = ASC, title: String): BookSearchResult!
+}
+
+enum SortDirection {
+  ASC
+  DESC
 }
\ No newline at end of file
diff --git a/backend/src/schema/typeDefs.generated.ts b/backend/src/schema/typeDefs.generated.ts
index 5604351..d88abf4 100644
--- a/backend/src/schema/typeDefs.generated.ts
+++ b/backend/src/schema/typeDefs.generated.ts
@@ -1,2 +1,2 @@
 import type { DocumentNode } from 'graphql';
-  export const typeDefs = {"kind":"Document","definitions":[{"name":{"kind":"Name","value":"Query"},"kind":"ObjectTypeDefinition","fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"book"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"id"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}],"type":{"kind":"NamedType","name":{"kind":"Name","value":"Book"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"genres"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"languages"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"bookFormats"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"searchBooks"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"title"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"series"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"author"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"language"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bookFormat"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"publisher"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"genres"},"type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"minPages"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"maxPages"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"limit"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"12"}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"offset"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"0"}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"BookSearchResult"}}}},{"kind":"FieldDefinition","description":{"kind":"StringValue","value":"Favorite books of the logged-in user, newest first.","block":false},"name":{"kind":"Name","value":"favoriteBooks"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"limit"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"12"}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"offset"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"0"}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"BookSearchResult"}}}},{"kind":"FieldDefinition","description":{"kind":"StringValue","value":"ID of every book the logged-in user that has been added to their favorites.","block":false},"name":{"kind":"Name","value":"favoriteBookIds"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}}},{"kind":"FieldDefinition","description":{"kind":"StringValue","value":"The logged-in user's most common genres among their favorite books.","block":false},"name":{"kind":"Name","value":"favoriteGenres"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"limit"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"3"}}],"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}}],"directives":[],"interfaces":[]},{"name":{"kind":"Name","value":"Mutation"},"kind":"ObjectTypeDefinition","fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"addFavoriteBook"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bookId"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Book"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"removeFavoriteBook"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bookId"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Boolean"}}}}],"directives":[],"interfaces":[]},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Book"},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"id"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"isbn"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"title"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"series"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"author"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"description"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"language"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"bookFormat"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"edition"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"pages"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"publisher"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"publishDate"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"coverImgUrl"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"genres"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}}]},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"BookSearchResult"},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"books"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Book"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"totalCount"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}]},{"kind":"SchemaDefinition","operationTypes":[{"kind":"OperationTypeDefinition","type":{"kind":"NamedType","name":{"kind":"Name","value":"Query"}},"operation":"query"},{"kind":"OperationTypeDefinition","type":{"kind":"NamedType","name":{"kind":"Name","value":"Mutation"}},"operation":"mutation"}]}]} as unknown as DocumentNode
\ No newline at end of file
+  export const typeDefs = {"kind":"Document","definitions":[{"name":{"kind":"Name","value":"Query"},"kind":"ObjectTypeDefinition","fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"book"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"id"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}],"type":{"kind":"NamedType","name":{"kind":"Name","value":"Book"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"genres"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"languages"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"bookFormats"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"searchBooks"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"title"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"series"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"author"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"language"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bookFormat"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"publisher"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"genres"},"type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"minPages"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"maxPages"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"limit"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"12"}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"offset"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"0"}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"sortBy"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"BookSortField"}},"defaultValue":{"kind":"EnumValue","value":"ID"}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"sortDirection"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"SortDirection"}},"defaultValue":{"kind":"EnumValue","value":"ASC"}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"BookSearchResult"}}}},{"kind":"FieldDefinition","description":{"kind":"StringValue","value":"Favorite books of the logged-in user, newest first.","block":false},"name":{"kind":"Name","value":"favoriteBooks"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"limit"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"12"}},{"kind":"InputValueDefinition","name":{"kind":"Name","value":"offset"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"0"}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"BookSearchResult"}}}},{"kind":"FieldDefinition","description":{"kind":"StringValue","value":"ID of every book the logged-in user that has been added to their favorites.","block":false},"name":{"kind":"Name","value":"favoriteBookIds"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}}},{"kind":"FieldDefinition","description":{"kind":"StringValue","value":"The logged-in user's most common genres among their favorite books.","block":false},"name":{"kind":"Name","value":"favoriteGenres"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"limit"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}},"defaultValue":{"kind":"IntValue","value":"3"}}],"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}}],"directives":[],"interfaces":[]},{"name":{"kind":"Name","value":"Mutation"},"kind":"ObjectTypeDefinition","fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"addFavoriteBook"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bookId"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Book"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"removeFavoriteBook"},"arguments":[{"kind":"InputValueDefinition","name":{"kind":"Name","value":"bookId"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}],"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Boolean"}}}}],"directives":[],"interfaces":[]},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"Book"},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"id"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"isbn"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"title"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"series"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"author"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"description"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"language"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"bookFormat"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"edition"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"pages"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"publisher"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"publishDate"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"coverImgUrl"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"genres"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"String"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"rating"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Float"}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"numRatings"},"type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}]},{"kind":"EnumTypeDefinition","name":{"kind":"Name","value":"BookSortField"},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"ID"}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"RATING"}}]},{"kind":"EnumTypeDefinition","name":{"kind":"Name","value":"SortDirection"},"values":[{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"ASC"}},{"kind":"EnumValueDefinition","name":{"kind":"Name","value":"DESC"}}]},{"kind":"ObjectTypeDefinition","name":{"kind":"Name","value":"BookSearchResult"},"fields":[{"kind":"FieldDefinition","name":{"kind":"Name","value":"books"},"type":{"kind":"NonNullType","type":{"kind":"ListType","type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Book"}}}}}},{"kind":"FieldDefinition","name":{"kind":"Name","value":"totalCount"},"type":{"kind":"NonNullType","type":{"kind":"NamedType","name":{"kind":"Name","value":"Int"}}}}]},{"kind":"SchemaDefinition","operationTypes":[{"kind":"OperationTypeDefinition","type":{"kind":"NamedType","name":{"kind":"Name","value":"Query"}},"operation":"query"},{"kind":"OperationTypeDefinition","type":{"kind":"NamedType","name":{"kind":"Name","value":"Mutation"}},"operation":"mutation"}]}]} as unknown as DocumentNode
\ No newline at end of file
diff --git a/backend/src/schema/types.generated.ts b/backend/src/schema/types.generated.ts
index a8a9c60..710bcbd 100644
--- a/backend/src/schema/types.generated.ts
+++ b/backend/src/schema/types.generated.ts
@@ -4,6 +4,7 @@ import type { ApolloContext } from '~/index';
 export type Maybe<T> = T | null | undefined;
 export type InputMaybe<T> = T | null | undefined;
 export type Omit<T, K extends keyof T> = Pick<T, Exclude<keyof T, K>>;
+export type EnumResolverSignature<T, AllowedValues = any> = { [key in keyof T]?: AllowedValues };
 export type RequireFields<T, K extends keyof T> = Omit<T, K> & { [P in K]-?: NonNullable<T[P]> };
 /** All built-in and custom scalars, mapped to their actual values */
 export type Scalars = {
@@ -25,9 +26,11 @@ export type Book = {
   id: Scalars['Int']['output'];
   isbn: Scalars['String']['output'];
   language?: Maybe<Scalars['String']['output']>;
+  numRatings?: Maybe<Scalars['Int']['output']>;
   pages: Scalars['Int']['output'];
   publishDate?: Maybe<Scalars['String']['output']>;
   publisher?: Maybe<Scalars['String']['output']>;
+  rating?: Maybe<Scalars['Float']['output']>;
   series?: Maybe<Scalars['String']['output']>;
   title: Scalars['String']['output'];
 };
@@ -38,6 +41,10 @@ export type BookSearchResult = {
   totalCount: Scalars['Int']['output'];
 };
 
+export type BookSortField =
+  | 'ID'
+  | 'RATING';
+
 export type Mutation = {
   __typename?: 'Mutation';
   addFavoriteBook: Book;
@@ -97,9 +104,15 @@ export type QuerysearchBooksArgs = {
   offset?: InputMaybe<Scalars['Int']['input']>;
   publisher?: InputMaybe<Scalars['String']['input']>;
   series?: InputMaybe<Scalars['String']['input']>;
+  sortBy?: InputMaybe<BookSortField>;
+  sortDirection?: InputMaybe<SortDirection>;
   title?: InputMaybe<Scalars['String']['input']>;
 };
 
+export type SortDirection =
+  | 'ASC'
+  | 'DESC';
+
 
 
 export type ResolverTypeWrapper<T> = Promise<T> | T;
@@ -176,10 +189,13 @@ export type ResolversTypes = {
   Book: ResolverTypeWrapper<BookMapper>;
   String: ResolverTypeWrapper<Scalars['String']['output']>;
   Int: ResolverTypeWrapper<Scalars['Int']['output']>;
+  Float: ResolverTypeWrapper<Scalars['Float']['output']>;
   BookSearchResult: ResolverTypeWrapper<Omit<BookSearchResult, 'books'> & { books: Array<ResolversTypes['Book']> }>;
+  BookSortField: ResolverTypeWrapper<'ID' | 'RATING'>;
   Mutation: ResolverTypeWrapper<Record<PropertyKey, never>>;
   Boolean: ResolverTypeWrapper<Scalars['Boolean']['output']>;
   Query: ResolverTypeWrapper<Record<PropertyKey, never>>;
+  SortDirection: ResolverTypeWrapper<'ASC' | 'DESC'>;
 };
 
 /** Mapping between all available schema types and the resolvers parents */
@@ -187,6 +203,7 @@ export type ResolversParentTypes = {
   Book: BookMapper;
   String: Scalars['String']['output'];
   Int: Scalars['Int']['output'];
+  Float: Scalars['Float']['output'];
   BookSearchResult: Omit<BookSearchResult, 'books'> & { books: Array<ResolversParentTypes['Book']> };
   Mutation: Record<PropertyKey, never>;
   Boolean: Scalars['Boolean']['output'];
@@ -203,9 +220,11 @@ export type BookResolvers<ContextType = ApolloContext, ParentType extends Resolv
   id?: Resolver<ResolversTypes['Int'], ParentType, ContextType>;
   isbn?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
   language?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
+  numRatings?: Resolver<Maybe<ResolversTypes['Int']>, ParentType, ContextType>;
   pages?: Resolver<ResolversTypes['Int'], ParentType, ContextType>;
   publishDate?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   publisher?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
+  rating?: Resolver<Maybe<ResolversTypes['Float']>, ParentType, ContextType>;
   series?: Resolver<Maybe<ResolversTypes['String']>, ParentType, ContextType>;
   title?: Resolver<ResolversTypes['String'], ParentType, ContextType>;
 };
@@ -215,6 +234,8 @@ export type BookSearchResultResolvers<ContextType = ApolloContext, ParentType ex
   totalCount?: Resolver<ResolversTypes['Int'], ParentType, ContextType>;
 };
 
+export type BookSortFieldResolvers = EnumResolverSignature<{ ID?: any, RATING?: any }, ResolversTypes['BookSortField']>;
+
 export type MutationResolvers<ContextType = ApolloContext, ParentType extends ResolversParentTypes['Mutation'] = ResolversParentTypes['Mutation']> = {
   addFavoriteBook?: Resolver<ResolversTypes['Book'], ParentType, ContextType, RequireFields<MutationaddFavoriteBookArgs, 'bookId'>>;
   removeFavoriteBook?: Resolver<ResolversTypes['Boolean'], ParentType, ContextType, RequireFields<MutationremoveFavoriteBookArgs, 'bookId'>>;
@@ -228,13 +249,17 @@ export type QueryResolvers<ContextType = ApolloContext, ParentType extends Resol
   favoriteGenres?: Resolver<Array<ResolversTypes['String']>, ParentType, ContextType, RequireFields<QueryfavoriteGenresArgs, 'limit'>>;
   genres?: Resolver<Array<ResolversTypes['String']>, ParentType, ContextType>;
   languages?: Resolver<Array<ResolversTypes['String']>, ParentType, ContextType>;
-  searchBooks?: Resolver<ResolversTypes['BookSearchResult'], ParentType, ContextType, RequireFields<QuerysearchBooksArgs, 'limit' | 'offset'>>;
+  searchBooks?: Resolver<ResolversTypes['BookSearchResult'], ParentType, ContextType, RequireFields<QuerysearchBooksArgs, 'limit' | 'offset' | 'sortBy' | 'sortDirection'>>;
 };
 
+export type SortDirectionResolvers = EnumResolverSignature<{ ASC?: any, DESC?: any }, ResolversTypes['SortDirection']>;
+
 export type Resolvers<ContextType = ApolloContext> = {
   Book?: BookResolvers<ContextType>;
   BookSearchResult?: BookSearchResultResolvers<ContextType>;
+  BookSortField?: BookSortFieldResolvers;
   Mutation?: MutationResolvers<ContextType>;
   Query?: QueryResolvers<ContextType>;
+  SortDirection?: SortDirectionResolvers;
 };
 
diff --git a/frontend/app/api/bookSort.ts b/frontend/app/api/bookSort.ts
new file mode 100644
index 0000000..6d76be1
--- /dev/null
+++ b/frontend/app/api/bookSort.ts
@@ -0,0 +1,26 @@
+// The sorting options users can choose between. The key is what we store in the
+// URL (?sort=rating_desc), and the other fields are what we send to the API.
+const BOOK_SORTS = {
+  rating_desc: {
+    label: "Rating: high to low",
+    sortBy: "RATING",
+    sortDirection: "DESC",
+  },
+  rating_asc: {
+    label: "Rating: low to high",
+    sortBy: "RATING",
+    sortDirection: "ASC",
+  },
+} as const;
+
+type BookSortKey = keyof typeof BOOK_SORTS;
+
+// Returns undefined for missing or unknown values, so a hand-edited URL
+// falls back to the default order instead of causing an error.
+function parseBookSort(value: string | null): BookSortKey | undefined {
+  return value !== null && Object.hasOwn(BOOK_SORTS, value)
+    ? (value as BookSortKey)
+    : undefined;
+}
+
+export { BOOK_SORTS, parseBookSort, type BookSortKey };
diff --git a/frontend/app/api/toBook.ts b/frontend/app/api/toBook.ts
index ce41fd4..2a86846 100644
--- a/frontend/app/api/toBook.ts
+++ b/frontend/app/api/toBook.ts
@@ -29,5 +29,6 @@ export function toBook(
     author: [book.author],
     publishedYear: yearFromPublishDate(book.publishDate),
     coverImage: book.coverImgUrl ?? undefined,
+    rating: "rating" in book ? (book.rating ?? undefined) : undefined,
   };
 }
diff --git a/frontend/app/api/types/graphql.generated.ts b/frontend/app/api/types/graphql.generated.ts
index 044a5fd..8389c24 100644
--- a/frontend/app/api/types/graphql.generated.ts
+++ b/frontend/app/api/types/graphql.generated.ts
@@ -2,6 +2,14 @@
 type Exact<T extends { [key: string]: unknown }> = { [K in keyof T]: T[K] };
 /** Internal type. DO NOT USE DIRECTLY. */
 export type Incremental<T> = T | { [P in keyof T]?: P extends ' $fragmentName' | '__typename' ? T[P] : never };
+export type BookSortField =
+  | 'ID'
+  | 'RATING';
+
+export type SortDirection =
+  | 'ASC'
+  | 'DESC';
+
 export type BookQueryVariables = Exact<{
   id: number;
 }>;
@@ -48,9 +56,11 @@ export type SearchBooksQueryVariables = Exact<{
   bookFormat?: string | null | undefined;
   minPages?: number | null | undefined;
   maxPages?: number | null | undefined;
+  sortBy?: BookSortField | null | undefined;
+  sortDirection?: SortDirection | null | undefined;
   limit?: number | null | undefined;
   offset?: number | null | undefined;
 }>;
 
 
-export type SearchBooksQuery = { searchBooks: { __typename: 'BookSearchResult', totalCount: number, books: Array<{ __typename: 'Book', id: number, title: string, author: string, publishDate: string | null, coverImgUrl: string | null }> } };
+export type SearchBooksQuery = { searchBooks: { __typename: 'BookSearchResult', totalCount: number, books: Array<{ __typename: 'Book', id: number, title: string, author: string, publishDate: string | null, coverImgUrl: string | null, rating: number | null }> } };
diff --git a/frontend/app/api/types/index.ts b/frontend/app/api/types/index.ts
index 7d517b8..fee2098 100644
--- a/frontend/app/api/types/index.ts
+++ b/frontend/app/api/types/index.ts
@@ -4,6 +4,7 @@ export interface Book {
   author: string[];
   publishedYear?: number;
   coverImage?: string;
+  rating?: number;
 }
 
 export interface BookFilters {
diff --git a/frontend/app/api/useBookSearchParams.ts b/frontend/app/api/useBookSearchParams.ts
index 520434a..e93a201 100644
--- a/frontend/app/api/useBookSearchParams.ts
+++ b/frontend/app/api/useBookSearchParams.ts
@@ -1,6 +1,7 @@
 import { useMemo } from "react";
 import { useSearchParams } from "react-router";
 import type { BookFilters } from "~/api/types";
+import { parseBookSort } from "~/api/bookSort";
 
 function parsePageCount(value: string | null) {
   const count = Number(value);
@@ -12,6 +13,7 @@ function useBookSearchParams() {
 
   const query = searchParams.get("q") ?? "";
   const page = parseInt(searchParams.get("page") ?? "1", 10);
+  const sort = parseBookSort(searchParams.get("sort"));
 
   // Only update filters when searchParams change to avoid unnecessary re-renders
   const filters = useMemo((): BookFilters => {
@@ -29,7 +31,7 @@ function useBookSearchParams() {
     };
   }, [searchParams]);
 
-  return { query, page, filters };
+  return { query, page, filters, sort };
 }
 
 export { useBookSearchParams };
diff --git a/frontend/app/api/useSearchBooks.ts b/frontend/app/api/useSearchBooks.ts
index 5179808..b2f536c 100644
--- a/frontend/app/api/useSearchBooks.ts
+++ b/frontend/app/api/useSearchBooks.ts
@@ -2,6 +2,7 @@ import { gql, type TypedDocumentNode } from "@apollo/client";
 import { useQuery } from "@apollo/client/react";
 import { toBook } from "~/api/toBook";
 import type { BookFilters } from "~/api/types";
+import { BOOK_SORTS, type BookSortKey } from "~/api/bookSort";
 import type {
   SearchBooksQuery,
   SearchBooksQueryVariables,
@@ -20,6 +21,8 @@ const SEARCH_BOOKS: TypedDocumentNode<
     $bookFormat: String
     $minPages: Int
     $maxPages: Int
+    $sortBy: BookSortField
+    $sortDirection: SortDirection
     $limit: Int
     $offset: Int
   ) {
@@ -30,6 +33,8 @@ const SEARCH_BOOKS: TypedDocumentNode<
       bookFormat: $bookFormat
       minPages: $minPages
       maxPages: $maxPages
+      sortBy: $sortBy
+      sortDirection: $sortDirection
       limit: $limit
       offset: $offset
     ) {
@@ -40,6 +45,7 @@ const SEARCH_BOOKS: TypedDocumentNode<
         author
         publishDate
         coverImgUrl
+        rating
       }
     }
   }
@@ -50,6 +56,7 @@ export const useSearchBooks = (
   filters: BookFilters,
   limit: number,
   offset: number,
+  sort?: BookSortKey,
 ) => {
   const { data, loading, error } = useQuery(SEARCH_BOOKS, {
     variables: {
@@ -59,6 +66,8 @@ export const useSearchBooks = (
       bookFormat: filters.bookFormat,
       minPages: filters.pages?.min,
       maxPages: filters.pages?.max,
+      sortBy: sort && BOOK_SORTS[sort].sortBy,
+      sortDirection: sort && BOOK_SORTS[sort].sortDirection,
       limit,
       offset,
     },
diff --git a/frontend/app/components/SearchBar/SearchBar.tsx b/frontend/app/components/SearchBar/SearchBar.tsx
index ef330ba..9ec33c9 100644
--- a/frontend/app/components/SearchBar/SearchBar.tsx
+++ b/frontend/app/components/SearchBar/SearchBar.tsx
@@ -18,6 +18,7 @@ import {
 import { useSearchParams } from "react-router";
 import { useDebounce } from "~/api/useDebounce";
 import { useBookSearchParams } from "~/api/useBookSearchParams";
+import { SortSelect } from "~/components/SortSelect/SortSelect";
 
 const SEARCH_DEBOUNCE_MS = 500;
 
@@ -119,6 +120,7 @@ function SearchBar({ resultCount }: SearchBarProps) {
           <FilterBooksSection />
         </PopoverContent>
       </Popover>
+      <SortSelect />
     </section>
   );
 }
diff --git a/frontend/app/components/SortSelect/SortSelect.tsx b/frontend/app/components/SortSelect/SortSelect.tsx
new file mode 100644
index 0000000..9223ceb
--- /dev/null
+++ b/frontend/app/components/SortSelect/SortSelect.tsx
@@ -0,0 +1,60 @@
+import { useSearchParams } from "react-router";
+import { BOOK_SORTS, parseBookSort } from "~/api/bookSort";
+import { useBookSearchParams } from "~/api/useBookSearchParams";
+import {
+  Select,
+  SelectContent,
+  SelectItem,
+  SelectTrigger,
+  SelectValue,
+} from "~/components/ui/Select";
+
+const DEFAULT_SORT = "default";
+
+function SortSelect() {
+  const [, setSearchParams] = useSearchParams();
+  const { sort } = useBookSearchParams();
+
+  const items = [
+    { value: DEFAULT_SORT, label: "Default order" },
+    ...Object.entries(BOOK_SORTS).map(([key, { label }]) => ({
+      value: key,
+      label,
+    })),
+  ];
+
+  return (
+    <div className="flex items-center justify-center gap-2 mt-4">
+      <span id="sort-label">Sort by</span>
+      <Select
+        items={items}
+        value={sort ?? DEFAULT_SORT}
+        onValueChange={(value) => {
+          const newSort = parseBookSort(value);
+          setSearchParams((searchParams) => {
+            if (newSort) {
+              searchParams.set("sort", newSort);
+            } else {
+              searchParams.delete("sort");
+            }
+            searchParams.delete("page");
+            return searchParams;
+          });
+        }}
+      >
+        <SelectTrigger aria-labelledby="sort-label" className="bg-white w-52">
+          <SelectValue />
+        </SelectTrigger>
+        <SelectContent>
+          {items.map((item) => (
+            <SelectItem key={item.value} value={item.value}>
+              {item.label}
+            </SelectItem>
+          ))}
+        </SelectContent>
+      </Select>
+    </div>
+  );
+}
+
+export { SortSelect };
diff --git a/frontend/app/routes/book/selectedBook.tsx b/frontend/app/routes/book/selectedBook.tsx
index 5c10ee4..05223c9 100644
--- a/frontend/app/routes/book/selectedBook.tsx
+++ b/frontend/app/routes/book/selectedBook.tsx
@@ -23,7 +23,7 @@ const DISABLED_STYLE = "pointer-events-none opacity-50";
 
 export default function SelectedBookPage({ params }: Route.ComponentProps) {
   const [searchParams] = useSearchParams();
-  const { query, page, filters } = useBookSearchParams();
+  const { query, page, filters, sort } = useBookSearchParams();
 
   const { book, loading, error, description } = useBook(params.bookId);
 
@@ -32,6 +32,7 @@ export default function SelectedBookPage({ params }: Route.ComponentProps) {
     filters,
     SEARCH_LIMIT,
     (page - 1) * SEARCH_LIMIT,
+    sort,
   );
 
   if (loading) {
diff --git a/frontend/app/routes/home.tsx b/frontend/app/routes/home.tsx
index 5cb1b22..f0039bf 100644
--- a/frontend/app/routes/home.tsx
+++ b/frontend/app/routes/home.tsx
@@ -12,13 +12,14 @@ export function meta() {
 }
 
 export default function HomePage() {
-  const { query, page, filters } = useBookSearchParams();
+  const { query, page, filters, sort } = useBookSearchParams();
 
   const { books, totalCount, loading, error } = useSearchBooks(
     query,
     filters,
     SEARCH_LIMIT,
     (page - 1) * SEARCH_LIMIT,
+    sort,
   );
 
   if (loading) {