- Abbreviations, Latin1
- Abraham (Biblical patriarch)1
- Absolution1
- Academic dissertations1
- Advent sermons1
- Aeneas (Legendary character)1
- Aesop's fables1
- Agriculture1
- Alcuin, 735-804. Correspondence1
- Alexander, the Great, 356 B.C.-323 B.C.1
- Algeria--Hippo (Extinct city)1
- Almanach perpetuum celestium motuum (Zacuto, Abraham ben Samuel)1
- Almanacs1
- Alum tawed thongs (Bindings)1
- Ambassadors1
- America1
- Annunciation to the Blessed Virgin Mary1
- Anthony, of Egypt, Saint, approximately 250-355 or 3561
- Anthony, of Padua, Saint, 1195-12311
- Antiphonaries (Service books)1