Madchen mit gelber katze - Girl with yellow cat | Max Beckmann, 1884-1950 was a German painter, draftsman, printmaker, sculptor, and writer. Although he is classified as an Expressionist artist, he rejected both the term and the movement.
Modernism-- is a philosophical movement that, along with cultural trends and changes, arose from wide-scale and far-reaching transformations in Western society during the late 19th and early 20th centuries. Among the factors that shaped modernism were the development of modern industrial societies and the rapid growth of cities, followed then by reactions of horror to World War I. Modernism also rejected the certainty of Enlightenment thinking, and many modernists rejected religious belief
Degenerate art (German: Entartete Kunst) was a term adopted by the Nazi regime in Germany to describe virtually all modern art. Such art was banned on the grounds that it was un-German, Jewish or Communist in nature, and those identified as degenerate artists were subjected to sanctions. These included being dismissed from teaching positions, being forbidden to exhibit or to sell their art, and in some cases being forbidden to produce art entirely. http://en.wikipedia.org/wiki/Degenerate_art