Ernst Ludwig Kirchner
Kirchner was one of the greatest expressionist painters and helped found the German Expressionism in century 20. The war experience, led him to have mental breakdowns, and suicide at 58 years old. Best known for his genre painting of Berlin street scenes and colourful female nudes and Self-Portrait as a Soldier (1915, Allen Memorial Art Museum, Ohio). He also produced several examples of poster art, influenced by German Gothic art (woodcut) and African sculpture.
Portrait of Gerda, 1914
Self-Portrait as a Soldier, 1915
Station in Davos, 1925
http://www.wikiart.org/en/ernst-ludwig-kirchner/portrait-of-gerda
