Theodor Seuss Geisel D'25 was extremely successful before he became one of the best selling authors in history. His films had won two Academy Awards. His ads for the insecticide Flit had made him very rich. And he had made his Seussonym a household name with McElligots's Pool and his books about Horton the Elephant. His book "The Cat in the Hat" was an instant bestseller and may be the most widely read by the under-eight set ever published.