In the summer of 2013, Raymond Pettibon took over one of David Zwirner's gallery spaces in New York, transforming the high-ceilinged, garage-like white cube into his studio in order to prepare a show of drawings and collages within--and sometimes directly on--its walls. Titled To Wit, evoking the Middle English expression that has come to express a certain formality today and is defined as "namely," or "that is to say," the exhibition gave new meaning...