- Ibn al-Sarrāj, Aḥmad ibn Abī Bakr, active 14th century1
- Ibrāhīm ibn Adʹham, -approximately 7771
- Illumination of books and manuscripts, French1
- Islam--Doctrines1
- Islamic calendar1
- Islamic painting1
- Japan1
- Jewish calendar1
- John, the Apostle, Saint1
- Khulāṣat al-ḥisāb (ʻĀmilī, Bahāʼ al-Dīn Muḥammad ibn Ḥusayn)1
- Landscapes1
- Letter writing, Hebrew1
- Lingas (Śaivism)1
- Logic1
- Majnūn Laylá1
- Manners and customs1
- Manuscripts, English1
- Manuscripts, European1
- Manuscripts, Greek (Medieval and modern)1
- Manuscripts, Japanese1