- Illumination of books and manuscripts, Flemish2
- Illumination of books and manuscripts, French5
- Illumination of books and manuscripts, German2
- Illumination of books and manuscripts, Gothic16
- Illumination of books and manuscripts, Indic5
- Illumination of books and manuscripts, Iranian16
- Illumination of books and manuscripts, Italian6
- Illumination of books and manuscripts, Medieval6
- Illumination of books and manuscripts, Renaissance1
- Illumination of books and manuscripts--Technique1
- Illuminations5
- Illuminations (painting)60
- Illuminations (paintings)1
- Illusion (Philosophy)2
- Illustrated works16
- Ilāhʹābādī, Muḥibb Allāh. Taswīyah1
- Ilāhʹābādī, ʻAbd Allāh ibn Shihāb. Sharḥ ʻalá ḍābiṭat sharāʼiṭ al-ashkāl al-arbaʻah li-Tahdhīb al-manṭiq1
- Imamate9
- Imams (Shiites)28
- Imams (Shiites)--Biography2