Otto Gleichmann 1887–1963 Movement: Expressionism More on Wikipedia Otto Gleichmann was a key figure in German expressionism. He produced oil paintings, watercolor paintings, sketches, lithographs and pictures in mixed media. Currently showing at Otto Gleichmann and Expressionism in Hanover Sprengel Museum · Hanover, Germany 1 Aug 2026 — 1 Nov 2026 A bold look at Expressionism's Hanover scene