Mark Tobey was an American painter and printmaker best known for his rich and complex abstract compositions. With Guy Anderson, Kenneth Callahan, Morris Graves, and William Cumming, Tobey was a founder of the Northwest School, a group that flourished in Seattle in the 1930s and 40s. As an older member of the group, Tobey had a lasting influence on the younger artists and shared their interest in philosophy and Eastern religions. Tobey is notable for his white writing compositions in particular which consist of a network of white or lightly-colored symbols, that resemble calligraphy, layered on an abstract field. Tobey's work can also be found in most major museums in the U.S. and internationally, including the Smithsonian American Art Museum, the Tate Gallery in London, the Museum of Modern Art in New York City, the Metropolitan Museum of Art, and the Whitney Museum of American Art.