(20 July 1913, in Bremen - 31 January 2009, Estavayer le Lac, Switzerland), was a German/US-American painter, graphic artist and illustrator. Affected by the style naive art he worked particularly as a graphic artist and as an Illustrator of children's books. Besides this he painted pictures in the style of naive art. Referred to as a “naïve” painter, his works exhibit a dry wit and refreshingly candid, satirical view of life.