A collection of paper, parchment, or any other material
containing print, paintings, or other inscribed works that are
all bound between two protective covers are called Books.
However, an e-book is is a collection of text that is
electronically formatted. Antique books come in the form of
scrolls and codex. The protective binders that contain the
sheets of paper containing writing may come in a hard protective
cover called a hardback or in a softer, flexible cover called a
paperback. Novels are the most popular form of books, although
works such as The Holy Bible and The Koran are referred to as
"The Book."