- Bibles3
- Bibliographies1
- Bignami, Bartholomeus de, active 15th century1
- Bio-bibliography1
- Biographies38
- Biography1
- Birjandī, ʻAbd al-ʻAlī ibn Muḥammad ibn Ḥusayn, active 16th century. Bīst bāb dar taqvīm2
- Bishops3
- Black Death1
- Blaeu, Willem Janszoon, 1571-1638. Teatrum orbis terrarum1
- Blaise, Saint, -approximately 3161
- Blank forms1
- Blessed1
- Blind stamped bindings1
- Blind tooled bindings27
- Blount, Thomas, active 16th century1
- Boards1
- Bocanegra family1
- Boccaccio, Giovanni, 1313-13751
- Boethius, -5241