New York: Viking Press, 2001. First Edition. Thick quarto. INSCRIBED by Hockney: "For Ray, David Hockney." The product of Hockney's investigations into the use of mirrors and lenses to create projections by great painters of the past, including Ingres, Velázquez, Caravaggio, and many more. Hockney presents his research in three parts: visual evidence, textual evidence, and correspondence. A hint of shelf wear to bottom of boards, else fine in a fine jacket.