Paul Klee (18 December 1879 29 June 1940) was a Swiss painter of German nationality. His highly individual style was influenced by movements in art that included expressionism, cubism, and surrealism. He was, as well, a student of orientalism. Klee was a natural draftsman who experimented with and eventually mastered color theory, and wrote extensively about it. His works reflect his dry humor and his sometimes child-like perspective, his personal moods and beliefs, and his musicality. He and his friend, the Russian painter Wassily Kandinsky, both taught at the German Bauhaus school of art and architecture.