Robert Rosenblum Transformations in Late Eighteenth Century Art. Paperback. Princeton, N. J., 1969, p. 169.
G. E. Bentley The Early Engravings of Flaxman's Classical Designs, A Bibliographical Study. 1964, pp. 15, 26, 53-6.
Robert Rosenblum The International Style of 1800, A Study in Linear Abstraction [Ph.D. dissertation]. PhD diss., Garland Publishing Co., 1956-1976 pp. 1-,122.
John Flaxman. Exh. cat. edited by David Bindman, Royal Academy of Arts, London, 1979, pp. 128,185.
David Irwin John Flaxman, 1755-1826: Sculptor, Illustrator Designer. London, 1979, pp. 90, 234.
Sarah Symmons Flaxman and Europe: the outline illustrations and their influence. New York, 1984, p. 78ff.