Grosz is known for his savage indictment of the effects of WW1 on German society. He shared a studio (and a taste for anglicised names) with Heartfield; together they claimed to have invented photomontage, and founded a magazine with Herzfelde, who went on to publish Grosz’s work. These three and Hausmann, Huelsenbeck and Baader formed the core of the Berlin Dada group. Dix and Kollwitz were fellow-members of a left-wing organisation, Jung worked with him on Dada publications, and Bearden was his student in the U.S. He denied who he was and slammed the door when Schwitters came to call.