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The Color of Creativity by Jonah Lehrer (Evening shows, 1935 Paul Klee)
Paul Klee Paul Klee (1879 – 1940) Swiss. Expressionism, cubism and surrealism influence (orientalism, too). Klee (draftsman)experimented with and eventually mastered colour theory, and wrote extensively about it; his lectures Writings on Form and Design Theory (Paul Klee Notebooks) it was compared with Leonardo da Vinci's A Treatise on Painting.