Raoul Dufy (1877-1953) studied art at night, supported by his wages as an errand boy, until he won a small scholarship in 1900 which enabled him to move to Paris. Although he met Bonnat and Matisse, he continued to work at a museum and as a book illustrator to support himself. He developed a style in which line and movement were paramount, with colour appearing in broad washes, and by the mid-1920s was being commissioned to paint murals for public buildings throughout France. Dufy's colour often did not mirror nature: he preferred to use what he thought objects ought to be, such as blue trees. He moved to southern France for health reasons in 1937; ten years later a trip to the United States for treatment for arthritis enabled him to return home and to continue painting in a limited fashion until his death.