In a parlor game played by the Surrealist group--the foremost avant-gardists of their time--participants made their marks on the quadrants of a folded sheet of paper: a many-eyed head, a distorted torso, hands fondling swollen breasts, snarling reptilian-dog feet descending from an egg-shaped midsection. The "Exquisite Corpse," as it was called, is still very much alive, having found artistic and critical expression from the days of the Surrealists...