Corita Kent

Sister Corita, a Catholic nun who taught art in Los Angeles, made screenprints that look like nothing else: supermarket slogans, song lyrics and scripture cut up, enlarged and set in sizzling Day-Glo colours. Her students at Immaculate Heart College helped pull the prints and stage her joyful Mary's Day festivals. She left the order in 1968 and moved to Boston, where her rainbow swash on the giant gas storage tank by the Southeast Expressway, painted in 1971, is still the largest copyrighted artwork in the world.