Edwards, Betty, 1926- Drawing on the right side of the brain : : a course in enhancing creativity and artistic confidence / [electronic resource] / Betty Edwards ; [instructional drawings, Betty Edwards, cover drawing, John Boomer].. — Los Angeles : New York : : J. P. Tarcher ; : distributed by St. Martin's Press,, c1979.. — vii, 207 p. : : ill. ; 24 cm.