- Blaise, Saint, -approximately 3161
- Blank forms1
- Blessed1
- Blind stamped bindings1
- Blount, Thomas, active 16th century1
- Boards1
- Bocanegra family1
- Boccaccio, Giovanni, 1313-13751
- Boethius, -5241
- Botany, Medical1
- Bouchard family1
- Bourbon, Jacques de, 1370-14381
- Bowyer, William1
- Bracciolini, Poggio, 1380-14591
- Bracciolini, Poggio, 1380-1459. Correspondence1
- Breviary (Catholic Church)1
- Brutus, Marcus Junius, 85 B.C.?-42 B.C.1
- Brutus, the Trojan (Legendary character)1
- Bucolica (Virgil)1
- Buddhist literature, Pali1