Bibliography:
"American Self-Taught Art: An Illustrated Analysis of 20th Century Artists and Trends with 1,319 Capsule Biographies" by Florence Laffal and Julius Laffal, 2003.
"Self Taught, Outsider, and Folk Art—A guide to American Artists, Locations and Resources" by Betty-Carol Sellen with Cynthia J. Johnson, 2000.
"20th Century American Folk, Self Taught, and Outsider Art" by Betty-Carol Sellen, Cynthia J. Johnson, Neal-Schuman Publishers, New York, 1993.
Cat and A Ball On A Waterfall: 200 Years of California Folk Painting and Sculpture, by Harvey Jones (Oakland Museum of Art, 1986)
"Museum of American Folk Art Encyclopedia of Twentieth Century American Folk Art and Artists" by Chuck and Jan Rosenak, Abbeville Press, New York, 1990.
"Self-Made Worlds: Visionary Environments" by Roger Manley and Mark Sloan, Aperture, New York, 1997.
Tree of Life: The Inaugural Exhibition of the American Visionary Art Museum by Rebecca Hoffberger, Roger Manley, Colin Wilson (1996)
Living in Balance by Jo Hanson, Patricia Sanders, Susan Leibovitz Steinman, John Abduljaami, Richmond Art Center (California, 1994)