Book

Books are items crafted from paper and can be used as components recipes for in several useful items, especially enchantment tables and bookshelves. Books and paper can naturally occur in chests, inside strongholds.

Crafting
Before snapshot 12w17a, books were crafted from three paper sheets in a single column.

In snapshot 12w17a and later, books also require a piece of leather in one of the empty slots. The items can be arranged in any order, allowing books to be crafted without a crafting table.

As a Crafting Material
Note: Books and Quills are crafted in any arrangement, and can only be crafted in Snapshot 12w17a and later.