Iconography /(?)/

I·co·nog·ra·phy

Iconography

n.
  1. The art or representation by pictures or images; the description or study of portraiture or representation, as of persons; as, the iconography of the ancients.
  2. The study of representative art in general.

Phrases & Compounds
Christian iconography
the study of the representations in art of the Deity, the persons of the Trinity, angels, saints, virtues, vices, etc.