Sheet of 20 Postage Stamps Made for George Morrison. One of the nation's greatest modernist artists and a founding figure of Native Americanmodernism, he challenged prevailing ideas of what Native American art should be, arguing that an artist's identity can exist independently from thenature of the art he creates. Morrison is best known for his abstract landscapes andmonumental wood collages, which draw on childhood memory and reflect a deep andabiding connection with the natural world.