- Bible. New Testament1
- Bible. Romans1
- Bible. Ruth1
- Biffoli, Antonio dei1
- Bignami, Bartholomeus de, active 15th century1
- Binduccio, Giovanna di1
- Binduccio, Piero di1
- Binduccio, Pietro di1
- Bishops--Temporal power1
- Blind stamped bindings1
- Bonaccorti, Benozzo1
- Bonyngton, John1
- Booksellers and bookselling1
- Booksellers' copies1
- Booth, William1
- Borghi, Piero, -approximately 14941
- Boschi, Giovanni1
- Botany, Medical1
- Bourbon, Jacques de, 1370-14381
- Bracciolini, Poggio, 1380-1459. Correspondence1