Zoomorphic Calligraphy. Basically transforming letters into images (or more specifically animals...hence the whole "zoo" part). It helps if those letters are in Arabic. While this art form has been going on for centuries, I only recently learned about how wonderful Sudanese artist Hassan Musa is at this skill. Aren't these stunning?!?! Trained in Khartoum before moving to France, Musa has been an artist for over a decade and also teaches calligraphy.