What is "shrek!"

Shrek! is a picture book written and illustrated in 1990, by William Steig about a repugnant and monstrous ogre who leaves home to see the world and ends up saving a princess. The name "Shrek" is derived from the Yiddish and German Schreck ( Yiddish שרעק) meaning "fear" or "fright". The book served as the basis for the popular Shrek film series over a decade after its publication.