Max Ernst was a prominent German avant-garde artist who helped found both Dadaism and Surrealism. He worked in a variety of media including film, collage, painting, and frottage—a technique wherein he collected pencil rubbings of different objects surfaces as source material. “Creativity is that marvelous capacity to grasp mutually distinct realities and draw a spark from their juxtaposition,” he once reflected. Born on April 2, 1891 in Bruhl, Germany, Ernst and his friend the artist Jean (Hans) Arp began creating Dadaist works in Cologne during the late 1910s. Moving to Paris in 1922, he entered the milieu of several artists, including Paul Éluard and André Breton. Motivated...