SEUSS,DR. DR. SEUSS: A GUIDE TO FIRST EDITIONS by Helen and Marc Younger and Daniel Hirsch. NY: 2002. 8vo, pictorial boards, 200p, index. Only 1000 copies printed, signed by 2 of the authors, Helen & Marc Younger. After 7 years of research the definitive guide to determining first American editions of Dr. Seuss's books is here. Each entry has detailed bibliographical information with a separate field telling what determines a first edition. Illustrated with more than 200 full color reproductions of dustwrappers and other keys for identification.