- Handbooks and manuals1
- Hieronymites1
- Hilarion, Saint, approximately 291-approximately 3711
- Historiated initials1
- Historical geography1
- History of Biblical events1
- Humanism1
- Humanistic ethics1
- Hymnals1
- Hymns1
- Ibn Amīn al-Dawlah, al-ʻAfīf, active 15th century. Lamḥah al-ʻAfīfīyah fī al-ṭibb1
- Ibn al-Biṭrīq, Yūḥannā, -approximately 8151
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz fī al-ṭibb1
- Illumination of books and manuscripts, French1
- Illumination of books and manuscripts, Renaissance1
- Indulgences1
- Inquisition1
- Iran--Dizfūl1
- Iraq--Baghdad1
- Islam--Doctrines1