Decorative endpapers are the sheets of paper found at the beginning and end of a book, often featuring intricate designs or patterns. They serve both aesthetic and functional purposes, helping to secure the book's pages to the cover while also enhancing its visual appeal. These endpapers can be made from various materials and may include illustrations, colors, or textures that complement the book's theme. Bookbinding techniques often incorporate decorative endpapers to create a more engaging reading experience, making them an important aspect of book design.