On June 29, 1940, Swiss artist Paul Klee died. 

“Art does not reproduce the visible but makes visible.”
From  ‘Schöpferische Konfession’, begun 1918; published 1920

Paul Klee (1879-1940) for the opening of the
Zentrum Paul Klee Exhibition Centre, Berne 
Issued by Switzerland in 2005
Designer: Claudia Bernet

The Swiss painter Klee created art out of his knowledge of music, literature and art theory. His dreamlike paintings, drawings and prints, though often childlike and playful, are among the most sophisticated artworks of the twentieth century. Klee taught at the Bauhaus schools in Weimar and Dessau. His art theory remains extremely influential. Paul Klee | National Gallery of Canada