Indiana, Robert, and Robert Creeley. Numbers. Stuttgart: Domberger, 1969. Print.

Krause, Martin F, John Wilmerding, and Robert Indiana. The Essential Robert Indiana, 2013. Print.

"NUMBERS ONE THROUGH ZERO." Robert Indiana. N.p., n.d. Web. 1 May 2017. <>.

"TWO." Robert Indiana. N.p., n.d. Web. 1 May 2017. <>.

Weitemeier, Hannah, and Yves Klein. Yves Klein, 1928-1962: International Klein Blue. Köln: Benedikt Taschen, 1995. Print.

Amanda Cruz, Elizabeth A.T. Smith, Amelia Jones, Cindy Sherman: Retrospective, exhibition catalogue, Museum of Contemporary Art, Chicago and The Museum of Contemporary Art, Los Angeles 1997

Monique Beudert, Sean Rainbird, Contemporary Art: The Janet Wolfson de Botton Gift, exhibition catalogue, Tate Gallery, London 1998

Early Work of Cindy Sherman, exhibition catalogue, Glenn Horowitz Bookseller, East Hampton, New York 2000, reproduced [pp.5-19]

Counihan, Clare. "Interview with Nomusa Makhubu." Comparative Studies of South Asia, Africa and the Middle East 36.2 (2016): 307-319.

Schneider, Arnd. Alternative Art and Anthropology: Global Encounters. London: Bloomsbury Academic, 2017. Print.

Perkins, Hetti, and Margie K. C. West. One Sun One Moon: Aboriginal Art in Australia. Sydney: Art Gallery of New South Wales, 2007. Print.

Riphagen, Marianne. "Darren Siwes: Dialogue with Rembrandt." Artlink 31.2 (2011): 78.

Kollwitz, Käthe, Martin Fritsch, Annette Seeler, and Gudrun Fritsch. Käthe Kollwitz: Selbstbildnisse = Self-Portraits. Leipzig: Seemann, 2007. Print.

Aldous Huxley, “Variations on Goya,” On Art and Artists, Morris Philipson, ed., (London: Chatto and Windus, 1960), pp.  218-19.

Guy Tal, “The Gestural Language in Francisco Goya’s Sleep of Reason Produces Monsters”, Word & Image, vol. 26, No. 2 (March 2010): 115-6; 125.

John J. Ciofalo, “Goya’s Enlightenment Protagonist: A Quixotic Dreamer of Reason,” Eighteenth-Century Studies, vol. 30, no. 4 (Summer 1997): 424.

Vogel, Susan M, and El Anatsui. El Anatsui: Art and Life, 2012. Print.