Theodor Seuss Geisel—known worldwide as the beloved children's author Dr. Seuss—produced a body of work that spans more than 70 years. Though most often associated with children's books, he frequently contributed cartoons and humorous essays to popular magazines, produced effective and memorable advertising campaigns ("Quick, Henry, the Flit!"), and won Oscars and Emmys for motion picture productions, animated shorts, and features. As founder and president of Beginner Books, his influence on children's book publishing was revolutionary, especially in the field of elementary readers.

Geisel's prolific career—he wrote or contributed illustrations to more than 75 books, most of which have been reprinted repeatedly and translated worldwide—and his predilection for made-up creatures make this joint bibliography and iconography especially useful to readers and researchers. The exhaustive bibliography is arranged chronologically, providing full bibliographic information, including translations as they appear, reissue information, and descriptions of the binding. The iconography links more than 900 fictional names, places and terms to the works in which they appear. For the reader seeking a first edition of Quomodo Invidiosulus Nomine Grinchus Christi Natalem Abrogaverit (How the Grinch Stole Christmas! translated into Latin) or hoping to identify "abrasion-contusions" (race cars in If I Ran the Circus!), this work promises as much discovery as a walk down Mulberry Street.