- Jewish astronomy2
- Jewish calendar2
- Jewish ethics2
- Judaism--Customs and practices2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Sharḥ mushkilāt al-Kashshāf2
- Jurjānī, ʻAlī ibn Muḥammad, al-Sayyid al-Sharīf, 1340-1413. Ḥāshiyah ʻalá Sharḥ Mukhtaṣar al-Muntahá2
- Karaites--Liturgy2
- Knowledge, Theory of (Islam)2
- Kumayl ibn Ziyād, 633 or 634-7012
- Language and languages--Style2
- Latin literature, Medieval and modern2
- Latin poetry2
- Leather bindings2
- Legacies (Islamic law)2
- Literary style2
- Logic, Medieval2
- Mahdi2
- Manicules2
- Manuscripts, Judeo-Arabic2
- Manuscripts, Sanskrit2