Dec. 18 (UPI) -- Tuesday's Google doodle celebrated what would have been the 139th birthday of Swiss-born artist Paul Klee.
The colorful, abstract image is a nod to the distinctive style of Klee, who incorporated elements of expressionism, cubism and surrealism into his watercolors, drawings and prints.
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Klee also taught at the Bauhaus school of art, design and architecture, and authored the modern-art bible Paul Klee Notebooks.
He died in 1940 at the age of 60.
