- Astronomy, Arab--Tables5
- Astronomy, Greek2
- Astronomy, Medieval17
- Astronomy--Charts, diagrams, etc--Early works to 18001
- Astronomy--Mathematics2
- Astronomy--Popular works1
- Astronomy--Religious aspects--Islam1
- Astronomy--Religious aspects--Jainism1
- Astronomy--Tables3
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah4
- Atlases1
- Atlases (Geographic)20
- Atonement1
- Atonement (Hinduism)13
- Atonement (Prayer)1
- Atonement (Prayer)--Hinduism1
- Attila, -4531
- Aubertus, de Galardone1
- Aubigné, Agrippa d', 1552-16301
- Auction copies6