Volume 2 was reissued as a monograph under the title: "The Complete Watercolors of Edward Hopper" (New York: Whitney Museum of American Art and W.W. Norton, isbn 0393049957, 2001). Volume 1 contains the artist's early works, illustrated in black and white. Volume 2 deals with the watercolors; entries include inscriptions and brief comments. Volume 3 on the oil paintings, includes comments, inscription and signature information, and notes. Volume 4 contains a CD-ROM with a chronological catalogue of works. Entries cite provenance, exhibition information, bibliography, and comments.