- Bible. Song of Solomon1
- Bible. Wisdom of Solomon1
- Bibles1
- Binders' tickets1
- Bishops1
- Blaise, Saint, -approximately 3161
- Blessed1
- Bona, Queen, consort of Sigismund I, King of Poland, 1494-15571
- Books and reading1
- Booksellers' labels1
- Bosses (Bindings)1
- Bracciolini, Poggio, 1380-14591
- Brass bosses (Bindings)1
- Breviary (Catholic Church)1
- Brocade bindings1
- Brudenell family1
- Brulefer, Etienne, -approximately 14991
- Brutus, Marcus Junius, 85 B.C.?-42 B.C.1
- Bucolica (Virgil)1
- Buonaccorsi family1