Former Owner
- Branners Bibliofile Antikvariat1
- Brayton C. Ives4
- Breslauer and Meyer1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Bridget Hunt1
- Bridgewater Library1
- Bristol Baptist College1
- Bruce Bannerman1
- Bruce P. Ferrini13
- Brudenell family2
- Brunori Cadamosto1
- Budapest University of Jewish Studies1
- Burg Kreuzenstein1
- Burgersdijk & Niermans1
- Burndy Library4
- Bury St Edmunds Abbey3
- Buxheim Charterhouse11
- Byron Reed1
- Bālambhaṭṭamuni1