The cover of a book is the outer protective layer that encases the pages. It typically includes the title, the author's name, and often an illustration or design that reflects the book's content. The cover can be made of various materials, such as paper or cardboard, and may be glossy or matte in finish. Book covers serve both functional and aesthetic purposes. They protect the pages from damage and dirt while also attracting potential readers. A well-designed cover can create interest and convey the genre, such as fiction, non-fiction, or mystery, helping readers decide if they want to explore the book further.