Dr. Theodor Seuss Geisel (March 2, 1904 – September 24, 1991), better known by his pen name, Dr. Seuss, was a famous American writer and cartoonist best known for his children’s books, particularly The Cat in the Hat. He also wrote under the pen names Theo. LeSieg and Rosetta Stone.
Postage stamp honoring Dr. Seuss and depicting him along with several of his creations, such as The Cat in the Hat and The Grinch (courtesy of the United States Postal Service).