Cao Zhibo, from Huating, Jiangsu province, painted landscapes in the Li Chang-Guo Xi tradition. He served as a district teacher during the Dade era (1297-1308), but later devoted himself entirely to his art and Daoist studies. For a list of extant works, please see James Cahill, An Index of Early Chinese Painters and Paintings, University of California Press, 1980, pp. 332-333. For further study, see also Chu-tsing Li, "Rocks and Trees and the Art of Ts'ao Chih-po," Artibus Asiae, XXIII, 1960, pp. 153-208.