{{For|the Host|Legends:Knowledge}}{{exclusive|java}}
{{Infobox item
| image = Knowledge Book.png
| renewable = No
| stackable = No
| rarity = Epic
}}
A '''knowledge book''' is a utility item that reveals available [[crafting]] recipes to the player when {{control|used|use}}.

== Obtaining ==
Knowledge books can be obtained only by using [[commands]], as they are not found in the [[creative inventory]].

For example, a player can give themselves a knowledge book that reveals the recipes for [[bucket]]s and [[flower pot]]s by running the following command: <code>/give @s knowledge_book[recipes=[bucket,flower_pot]]</code>.

== Usage ==
Knowledge books are used to reveal recipes to the player who uses it, by adding it to their [[recipe book]]. Using a knowledge book consumes it, removing it from the player's inventory.

Knowledge books are especially useful to mapmakers in conjunction with {{cmd|gamerule doLimitedCrafting true}}, because then any item is craftable only if its recipe is unlocked first.

{{control|Use|text=Using}} the [[chiseled bookshelf]] while having a knowledge book in the main hand puts the book inside the chiseled bookshelf.

== Trivia ==
* Until [[Java Edition 24w09a|24w09a]] ([[Java Edition 1.20.4|1.20.4]]) knowledge books were commonly used in [[data pack]]s, as an output of crafting that was replaced with an item with custom data.

== Sounds ==

{{SoundTable
| type = java
| {{SoundLine
| sound =Chiseled bookshelf insert1.ogg
|sound2=Chiseled bookshelf insert2.ogg
|sound3=Chiseled bookshelf insert3.ogg
|sound4=Chiseled bookshelf insert4.ogg
|subtitle=Book placed
|source=block
|description=When a knowledge book is placed in a chiseled bookshelf
|id=block.chiseled_bookshelf.insert
|translationkey=subtitles.chiseled_bookshelf.insert
|volume=0.8
|pitch=''varies'' <ref group=sound>Can be 1.0, 0.85, or 1.1 for each sound</ref>
|distance=16}}
| {{SoundLine
|sound=Chiseled bookshelf pickup1.ogg
|sound2=Chiseled bookshelf pickup2.ogg
|sound3=Chiseled bookshelf pickup3.ogg
|subtitle=Book taken
|source=block
|description=When a knowledge book is removed from a chiseled bookshelf
|id=block.chiseled_bookshelf.pickup
|translationkey=subtitles.chiseled_bookshelf.take
|volume=0.8
|pitch=''varies'' <ref group=sound>Can be 1.0, 0.8, or 1.1 for each sound</ref>
| distance = 16
}}
}}

== Data values ==
=== ID ===
{{ID table
|edition=java
|showforms=y
|generatetranslationkeys=y
|displayname=Knowledge Book
|spritetype=item
|nameid=knowledge_book
|form=item
|foot=1}}

=== Item data ===
{{see also|Data component format}}
<div class="treeview">
* {{nbt|compound|components}}: the item's '''components''' tag.
{{:Data component format/recipes}}
</div>

== History ==
{{HistoryTable
|{{HistoryLine|java}}
|{{HistoryLine||1.12|dev=17w13a|[[File:Knowledge Book JE1.png|32px]] Added knowledge books.}}
|{{HistoryLine||1.13|dev=17w47a|Prior to [[1.13/Flattening|''The Flattening'']], this [[item]]'s numeral ID was 453.}}
|{{HistoryLine||1.14|dev=18w43a|[[File:Knowledge Book JE2.png|32px]] The texture of knowledge books has now been changed.}}
|{{HistoryLine||1.20|dev=1.20 Release Candidate 1|Knowledge books can now be placed in [[Chiseled Bookshelf|chiseled bookshelves]].}}
}}

== Issues ==
{{Issue list}}

== See also ==
* [[Book]]
* [[Enchanted Book]]
* {{cmd|recipe}} command
* [[Recipe book]]

== Navigation ==
{{Navbox items|Creative}}

[[Category:Non-renewable resources]]

[[de:Buch des Wissens]]
[[es:Enciclopedia]]
[[fr:Livre des connaissances]]
[[ja:知恵の本]]
[[ko:지식의 책]]
[[lzh:天工開物]]
[[pl:Księga wiedzy]]
[[pt:Enciclopédia]]
[[ru:Книга знаний]]
[[uk:Книга знань]]
[[zh:知识之书]]