Whilst his work was far less political than key figures in Berlin Dada, such as George Grosz and John Heartfield, he would remain close friends with various members, including Hannah Höch and Raoul Hausmann, for the rest of his career.
Mens hans arbejde var langt mindre politisk end tilfældet var for de centrale personer i den berlinske dada, som George Grosz og John Heartfield, blev han nære venner med forskellige medlemmer, herunder Hannah Hoch og Raoul Hausmann for resten af sin karriere.