- Greek language--Grammar1
- Greek letters1
- Gregorian chants1
- Half bindings1
- Hanbalites1
- Harawī, ʻUmar, active 13th century. Hārūnīyah fī al-taṣrīf1
- Historia de regibus Gothorum, Vandalorum, et Suevorum (Isidore, of Seville, Saint)1
- Humanism1
- Humanistic ethics1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz al-Qānūn fī al-ṭibb1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz fī al-ṭibb1
- Illumination of books and manuscripts1
- Illumination of books and manuscripts, Gothic1
- Incunabula1
- Indexes1
- Islam and philosophy1
- Islamic Empire1
- Islamic law--Interpretation and construction1
- Islamic sermons, Arabic1
- Italian rotunda (script)1