Berlin's Neue Nationalgalerie turns to the non-representational art that went on being made in Germany after 1933 despite defamation and no chance to exhibit, by artists such as Willi Baumeister, Jeanne Mammen and Alexej von Jawlensky.
The show opens with examples of those who went into exile, among them Kurt Schwitters and Paul Klee, then concentrates on those who stayed and kept working while the Nazis outlawed modernism.