- Astronomy--Tables1
- Atlantic Ocean--English Channel1
- Atlases (Geographic)1
- Aurispa, Giovanni, approximately 1376-14591
- Austria--Lower Austria1
- Averroës, 1126-1198. Talkhīs kitāb al-ʻIbārah1
- Averroës, 1126-1198. Talkhīṣ kitāb al-maqūlāt1
- Averroës, 1126-1198. Talkhīṣ madkhal Furfūriyūs1
- Azharī, Khālid ibn ʻAbd Allāh, -1499. Muqaddimah al-Azʹharīyah1
- Badr al-ṭāliʻ fī ḥall Jamʻ al-jawāmiʻ (Maḥallī, Jalāl al-Dīn Muḥammad ibn Aḥmad)1
- Ballads1
- Ballads, Italian1
- Banks and banking1
- Baptism1
- Baptism of Jesus Christ1
- Baraita of 32 rules1
- Barbara, Saint1
- Bartholomeo, de Soncino1
- Bartolo, of Sassoferrato, 1313-13571
- Battle Abbey1