- Botany, Medical5
- Bouchet, Jean, 1476-approximately 1558. Balade moralle contre les aveuglez mondainsi1
- Bowyer, William1
- Brass bosses (Bindings)12
- Bread2
- Breastfeeding--Religious aspects--Islam2
- Brescia (Italy). Podestà1
- Breviaries4
- Bridles2
- British1
- Bruse, Andrew1
- Buildings1
- Bukhārī, Muḥammad ʻAlī ibn Mubārakshāh, -approximately 1340. Sharḥ Ḥikmat al-ʻayn1
- Bulls, Papal2
- Buonamici, Giovanni Francesco1
- Burdah (Būṣīrī, Sharaf al-Dīn Muḥammad ibn Saʻīd)3
- Burhān al-Sharīʻah, Maḥmūd ibn ʻUbayd Allāh, -1274 or 1275. Wiqāyat al-riwāyah16
- Burhān al-Sharīʻah, Maḥmūd ibn ʻUbayd Allāh, d. 1274 or 5. Wiqāyat al-riwāyah5
- Burlesques1
- Byzantine Empire2