Endpapers are the pages found at the beginning and end of a book, which are usually glued to the cover. They are also called end leaves or endsheets. These sheets can be of various types and designs. One of the most common types is the plain paper endpaper, which is usually white or cream-colored. There is also patterned or decorated endpapers, which can add aesthetic value or complement the book's theme. Some variants include coated endpapers, marbled endpapers, or watermarked papers. Endpapers can also be made of different materials, such as cloth or leather. Regardless of its type, the endpaper is an essential element of a book, as it helps protect its cover and provide a smooth transition to its contents.