German art historian, born at Bautzen, Saxony. He studied literature at university, but he became interested in art through exhibitions of Die Brücke in Dresden, then formed friendships with several leading painters of the day. In the 1920s he published books on Kandinsky (1924), Kirchner (1925 and 1926), and Klee (1929), but when the Nazis came to power in 1933 he was prevented from working (see degenerate art). He resumed his career after the Second World War and became professor of art history at the Hochschule für Bildende Künste in Berlin in 1948. From then until his death he published a succession of monographs on German art, including further studies of Kandinsky, Kirchner, and Klee. Several of his books were translated into English, and he also helped to introduce German art to a British audience through collaborating on catalogues of exhibitions held by Marlborough Fine Art in London, for example ‘Painters of the Bauhaus’ in 1962.
From A Dictionary of Modern and Contemporary Art in Oxford Reference.