Maclagan, David. Outsider Art : from the Margins to the Marketplace. London: Reaktion, 2009.
Maizels, John. Outsider Art Sourcebook : Art Brut, Folk Art, Outsider Art. , Herts: Raw Vision, 2009.
Rhodes, Colin. Outsider Art : Spontaneous Alternatives. London ; New York: Thames & Hudson, 2000.
Rosenak, Chuck and Jan. Contemporary American Folk Art: A Collector’s Guide. New York: Abbeville Press,1996.
Sellen, Betty-Carol with Cynthia J. Johanson. Self Taught, Outsider, and Folk Art: A Guide to American Artists, Locations and Resources. Updated and revised edition. Jefferson, NC: McFarland & Company, Inc., 2000.
Arnett, Paul. Souls Grown Deep : African American Vernacular Art of the South. 1st ed. Atlanta, Ga.: In association with the Schomburg Center for Research in Black Culture, the New York Public Library, 2000.
Crown, Carol, Cheryl Rivers, and Charles Reagan Wilson editors. The New Encyclopedia of Souther Culture: Volume 23: Folk Art. Chapel Hill: University of North Carolina Press, 2013.
Folk Art Society of America. Publishes Folk Art Messenger.
Raw Vision. International Outsider Art Journal.