- Blind tooled bindings1
- Boccaccio, Giovanni, 1313-13751
- Bona, Queen, consort of Sigismund I, King of Poland, 1494-15571
- Books and reading1
- Booksellers and bookselling1
- British1
- Brulefer, Etienne, -approximately 14991
- Buonaccorsi family1
- Buonaccorsi, Constanza1
- Buonaccorsi, Niccolò di Piero1
- Buonaccorsi, Piero1
- Buondelmonte, Piero1
- Busdraghi, Matteo, 14th century1
- Busdraghi, Nicola, 14th century1
- Busdraghi, Piero, 14th century1
- Business mathematics1
- Byzantine literature1
- Calendar1
- Campeggi, Tommaso, 1483-15641
- Cancon (France)1