Hermann Wünsche, Andy Warhol: Das Graphische Werk 1962-1980; Elizabeth Knowles, Howard Hodgkin: Prints 1977 to 1983 (Catalogue Raisonné), The Tate Gallery; Wallace Stevens and David Hockney, The Man with the Blue Guitar; Helen Frankenthaler Prints: 1961-1979, Williams College; Ruth E. Fine, Helen Frankenthaler Prints, National Gallery of Art, Washington, D.C.; Per Hovdenakk, Christo Complete Editions 1964-1982 (Catalogue Raisonné); Susan Sheehan, et al., Robert Indiana Prints: A Catalogue Raisonné 1951-1991, Susan Sheehan Gallery; Richard Axsom and Phylis Floyd, The Prints of Ellsworth Kelly: A Catalogue Raisonné 1949-1985; Richard H. Axsom and David Platzker, Printed Stuff: Prints, Posters, and Ephemera by Claes Oldenburg, A Catalogue Raisonné 1958-1996; Mary Lee Corlett, The Prints of Roy Lichtenstein: A Catalogue Raisonné 1948-1993, National Gallery of Art, Washington, D.C.