Working in the advertising world in the fifties and sixties, the New York photographer perfected his brash, satirical style—equal parts Madison Avenue and Mad magazine. His specialty was the photomontage, a seamless mash-up of imagery seen here in his 1964 series, “30 Ways to Stop Smoking,” which was turned into a book that was less a how-to manual than an essay on compulsion and excess. Gescheidt’s poster-ready Pop surrealism packs a bracingly vulgar, subversive punch: in one picture, a smoker lights his cigarette with a few blazing sticks of dynamite. Through July 19.