 Among the principal Australian artists of the 20th century are the surrealists Sidney Nolan, Arthur Boyd and Russell Drysdale, the avant-garde Brett Whiteley, the painter/sculptors William Dobell and Norman Lindsay, the landscapists Emily Kame Kngwarreye, Albert Namatjira and Lloyd Rees, and modernist photographer Max Dupain.Each has helped to define the unique character of the visual arts in Australia.Modernism arrived in Australia early in the 20th century.