His Last Supper series done in Italy(based on Leonardo's "real" one) was meant seriously by the artist who had remained a devout Christian.
Warhol helped spark the transition from macho New York Abstract Expressionism to playful gender-bending postmodernism. Warhol was already sucessful as a commercial artist when he exhibitedstacks of hand-stencilled plywood boxes at the Stabler gallery in NY in 1964. The boxes had a tremendous impact on philosopher Arthur Danto, who has repeatedly discussed them ( he even wrote a book titled Beyond the Brillo Box ). Warhol's Brillo Boxes looked just like one in a supermarket, and Danto found this puzzling: