- Astrology, Iranian1
- Astrology, Turkish2
- Astrometeorology1
- Astronomical instruments8
- Astronomy18
- Astronomy, Arab40
- Astronomy, Medieval1
- Aswānī, ʻUthmān ibn Saʻd Allāh, active 19th century. Risālat al-ikhwān1
- Athīr al-Dīn al-Abharī, al-Mufaḍḍal ibn ʻUmar, -1265. Hidāyat al-ḥikmah7
- Authority--Religious aspects--Islam1
- Authorship2
- Autographs46
- Avatars (Religion)6
- Avicenna, 980-1037. Ṭūr al-asrār wa-jabal fī al-ghār1
- Azerbaijani poetry1
- Azharot1
- Aḥmad ibn Qāsim, 1813 or 1814-approximately 1856 or 1857. Wasīlat al-mubtadiʼīn li-ʻilm ghurrat al-shuhūr wa-al-sinīn1
- Aḥsāʼī, Aḥmad ibn Zayn al-Dīn, 1753-1826. Fawāʼid2
- Aḥsāʼī, Aḥmad ibn Zayn al-Dīn, 1753-1826. Ziyādāt al-Fawāʼid1
- Aḥsāʼī, Yaḥyá ibn Ḥusayn, active 17th century-18th century1