Binding of Isaac: Rebirth Wiki
Binding of Isaac: Rebirth Wiki

Removed in RepentanceLocked Door.png Added in RepentanceLibrary door locked.pngLibrary door.png

Libraries are rooms that must be opened with a key. They can contain at least one book, card or rune in them. The books are free to pick up.

The list of books that can be found in the library can be found here.


A Library can take one of the following layouts:[]


  • Removed in Repentance From the outside, the library is identical in appearance to the shop. One of the ways they can be distinguished is if Isaac has a mapping item such as 15►Spelunker Hat Spelunker Hat or 15►The Compass The Compass. Generally, the library will be closer to the spawn than the shop.
    • Added in Repentance The library now has its own door.
  • Once all books in the library pool have been picked up, items from the Treasure Room pool will spawn instead.
    • This can be achieved by repeatedly re-rolling the contents of a Library with The D6.
  • Added in Afterbirth15►Chaos Chaos replace the books with items from random pools, allowing Isaac to get passive items without rerolling.
  • Added in Afterbirth † Maggots can spawn in the library.
  • Added in RepentanceNO! NO! now replaces all the books inside the library with passive items, with Added in Repentance15►Book of Virtues Book of Virtues being the only exception.


  • The music that plays in the Library is the same as the one played in ending 14.
  • This Isaac seed has 4 libraries up to depths 2 - EY4S A906

SmallIsaac.png Rooms SmallIsaac.png

Unlocked Added in Afterbirth Added in Afterbirth †
Boss Room Icon.png
Boss Room
Mini-Boss Room Icon.png
Mini-Boss Room
Curse Room Icon.png
Curse Room
Sacrifice Room Icon.png
Sacrifice Room
Room 1x1 small.png
Room 1x1.png
Grave Room
Locked Added in Repentance
Treasure Room Icon.png
Treasure Room
Shop Icon.png
Library Icon.png
Planetarium Icon.png
Slotted Arcade Icon.png
Barred Challenge Room Icon.png
Challenge Room
Boss Challenge Room Icon.png
Boss Challenge Room
Double-locked Vault Icon.png
Dice Room Icon.png
Dice Room
Double-boarded Bedroom Icon.png Bedroom2 Icon.png
Hidden Added in Repentance
Secret Room Icon.png
Secret Room
Super Secret Room Icon.png
Super Secret Room
Super Secret Room Icon.png
Crawl Space
Super Secret Room Icon.png
Black Market
Super Secret Room Icon.png
Ultra Secret Room Icon.png
Ultra Secret Room
Post-boss Added in Afterbirth
Devil Room Icon.png
Devil Room
Angel Room Icon.png
Angel Room
Super Secret Room Icon.png
Boss Rush
Super Secret Room Icon.png
Blue Womb Entrance
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