Everything you need to understand or teach Art and Illusion by Ernst Gombrich.
Art and Illusion: A Study in the Psychology of Pictorial Representation, published in 1960, is one of the most influential books written during the twentieth century on the subject of art. Following the publication in 1950 of his incredibly popular book, The Story of Art, Ernst Hans Josef Gombrich consented to give the A. W. Mellon Lectures in the Fine Arts at the National Gallery of Art in Washington, D.C., in 1956. Those lectures became...