During the first two decades of the 20th century, many artists famously experimented with nonrepresentational expression. Taking cues from ideas hinted as by artists such as El Greco, Goya, Van Gogh, and Munch, Expressionists sought to transform reality rather than depict it in any sort of literal fashion. Egon Schiele, Max Beckmann, Paul Klee, and Wassily Kandinsky are among Expressionism's most famous exponents.
Norbert Wolf graduated in art history, linguistics and medieval studies at the universities of Regensburg and Munich, and earned his PhD in 1983. He held visiting professorships in Marburg, Frankfurt, Leipzig, Düsseldorf, Nuremberg-Erlangen, and Innsbruck. His extensive writings on art history include many TASCHEN titles, such as Diego Velázquez, Ernst Ludwig Kirchner, Caspar David Friedrich, Expressionism, Romanesque, Landscape Painting and Symbolism.