It is documented here on the wiki due to being officially-released content by Mojang Studios, even if not present in a final version.
|Catches fire from lava||
The box of infinite books is a block introduced in Java Edition 20w14∞ that provides a written book containing random text when used. It uses the texture of oak planks on all but one face, on which it has its own bookshelf-like texture randomized based on its location.
Boxes of infinite books are available in the creative inventory, and naturally generate in the "library" and "isolation" dimensions.
Boxes of infinite books can be mined by hand but are broken faster with an axe.
Boxes of infinite books naturally generate in the "library" dimension where they make up the bulk of the dimension’s terrain, and in the "isolation" dimension where 10 boxes can be found in the basement of the house.
The random books are tied to the block such that using the same block multiple times always returns an identical book. The title of the random books given by the block is correlated with the location of the block. The title's pattern takes the format
<chunk X>/<chunk Z>/<block orientation>/<distance to the chunk's edge to the right of the block>/<block Y>, so books from the same block always has the same title and content.
The author of every book is "Universe itself", obfuscated, and every book has 16 pages filled with random text. No books ever drop if game rule
doTileDrops is set to
|Box of Infinite Books||Block & Item|
|20w14∞||Added the box of infinite books.|
|3D Shareware v1.34||