Former Owner
- Boies Penrose II2
- Bonaventura Brem1
- Bonhams & Butterfield1
- Brayton C. Ives4
- Breslauer and Meyer1
- Brian Douglas Stilwell1
- Brick Row Book Shop1
- Bridget Hunt1
- Bridgewater Library1
- Bristol Baptist College1
- Bruce Bannerman1
- Bruce P. Ferrini10
- Brudenell family1
- Brunori Cadamosto1
- Burg Kreuzenstein1
- Burgersdijk & Niermans1
- Burndy Library2
- Bury St Edmunds Abbey3
- Buxheim Charterhouse11
- Byron Reed1