- Animals1
- Arabic poetry1
- Archives1
- Arithmetic1
- Arrighi family1
- Asceticism1
- Augustine, of Hippo, Saint, 354-4301
- Aurispa, Giovanni, approximately 1376-14591
- Autos-da-fé1
- Bardi, Giovanni de', conte di Vernio, 1534-16121
- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable Madre Geronima de San Estevan1
- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable madre Feliciana de San Ioseph1
- Beards1
- Benefices, Ecclesiastical1
- Bible. Old Testament1
- Biographies1
- Blaeu, Willem Janszoon, 1571-1638. Teatrum orbis terrarum1
- Blind tooled bindings1
- Bosses (Bindings)1
- Botany, Medical1