Cézanne Watercolors (editor and co-author). New York: M. Knoedler and Co., 1963.
Manet: Olympia. London: Allen Lane, 1976. ISBN0713908076
The Notebooks of Edgar Degas: A Catalogue of the Thirty-Eight Notebooks in the Bibliothèque Nationale and Other Collections. 2 vols. Oxford: Clarendon Press, 1976. ISBN0198173334. 2nd ed., revised, New York: Hacker Art Books, 1985.
Cézanne: The Late Work (co-edited with William Rubin and John Rewald). New York: Museum of Modern Art, 1976. ISBN0-87070-278-5
Manet and Modern Paris: One Hundred Paintings, Drawings, Prints, and Photographs by Manet and His Contemporaries. Washington: National Gallery of Art, 1982. Chicago: University of Chicago Press, 1983.
Degas et son oeuvre: A Supplement (co-authored with Philippe Brame). New York: Garland Publishing, 1984. ISBN0-8240-5525-X (v. 5)
Paul Cézanne: Two Sketchbooks (co-authored with Innis Howe Shoemaker). Philadelphia: Philadelphia Museum of Art, 1989.
Manet's Incident in a Bullfight. New York: The Council of the Frick Collection, 2005.
The Letters of Edgar Degas. 3 vols. New York: Wildenstein Plattner Institute, 2020.