- Graduals (Chants)1
- Gulshan-i rāz (Shabistarī, Maḥmūd ibn ʻAbd al-Karīm)1
- Hadith (Shiites)1
- Handbooks and manuals1
- Hermits1
- Historiated initials1
- Historiography1
- History, Military1
- History--Philosophy1
- Hymns, Latin (Medieval and modern)1
- Ibn Amīn al-Dawlah, al-ʻAfīf, active 15th century. Lamḥah al-ʻAfīfīyah fī al-ṭibb1
- Ibn Saʻādah, Aḥmad ibn ʻAlī, active 13th century. Risālat al-ʻilm1
- Ibn al-Fāriḍ, ʻUmar ibn ʻAlī, 1181 or 1182-1235. Tāʾīyah1
- Ibn al-Nafīs, ʻAlī ibn Abī al-Ḥazm, 1210 or 1211-1288. Mūjaz fī al-ṭibb1
- Illegible markings1
- Illumination of books and manuscripts, Italian1
- Illustrated works1
- Imamate1
- Imams (Shiites)--Biography1
- Imāmʹzādah, Muḥammad ibn Abī Bakr, 1097 or 1098-1177 or 1178. Shirʻat al-Islām1