- Batista de Lanuza y Tafalla, Miguel, -1659. Vida de la venerable madre Feliciana de San Ioseph1
- Battle of Covadonga (Covadonga, Spain : 718)1
- Beards1
- Bello family1
- Benedictions1
- Benefices, Ecclesiastical1
- Bevelled edge boards1
- Bible. Genesis1
- Bible. Genesis, XXVIII, 10-XXXII, 31
- Bible. Job1
- Bible. Joshua1
- Bible. Matthew1
- Bible. Old Testament1
- Bible. Psalms1
- Blaeu, Willem Janszoon, 1571-1638. Teatrum orbis terrarum1
- Boards1
- Bonus, Petrus, active 1323-1330--Manuscripts1
- Bookbinding1
- Books of hours1
- Booksellers and bookselling1