Book

A book is an item that can be used as a crafting material, or to store enchantments in a form that can be applied to any valid item using an anvil.

Three books are dropped when a bookshelf is broken without using Silk Touch or fire.

Disenchanting an enchanted book at a grindstone yields a normal book and a small amount of experience (unless the enchanted book has a Curse of Binding or a Curse of Vanishing on it).