Knowledge Book

A knowledge book is an utility item that reveals available crafting recipes to the player when.

Obtaining
Knowledge books can only be obtained using commands, as it is not found in the creative inventory, therefore, it's also impossible to obtain in other modes, such as survival and adventure.

For example, to give oneself a knowledge book that reveals the recipes for buckets and flower pots, use:.

Usage
Knowledge books are used to reveal recipes to the player who uses it, by adding it to their recipe book.

Knowledge books are especially useful to mapmakers in conjunction with setting to true, because then any item is only craftable if its recipe is unlocked first.

Item data
Recipe books use the NBT tag  to indicate the recipes they contain.

''The following NBT structure is provided to show how the  tag is organized, and is not comprehensive above the   tag. The full NBT for an item can be found here.''


 * Entity data
 * : The item
 * : Additional information about the item. This tag is optional for most items.
 * : The list of recipes this book contains.
 * the name of a recipe, for instance  or