- Blaeu, Willem Janszoon, 1571-1638. Teatrum orbis terrarum1
- Blaise, Saint, -approximately 3161
- Blind tooled (decoration)1
- Blind tooled bindings4
- Blount, Thomas, active 16th century1
- Boards1
- Boccaccio, Giovanni, 1313-13751
- Bookbinding6
- Bookplates12
- Books of hours27
- Booksellers' labels1
- Bosses (Bindings)3
- Botany, Medical1
- Bourbon, Jacques de, 1370-14381
- Bowyer, William1
- Brass bosses (Binding)1
- Breviaries9
- Breviary (Catholic Church)1
- Brutus, Marcus Junius, 85 B.C.?-42 B.C.1
- Brutus, the Trojan (Legendary character)1