Dr. Seuss Quotes : Theodor Seuss Geisel was born on March 2, 1904, in Springfield, Massachusetts. He was an American writer and illustrator best known for authoring popular children’s books under the pen name Dr. Seuss. Throughout his career, cartoonist and writer Dr. Seuss published over 60 books. His children’s books like ‘The Cat in the Hat’ and ‘Green Eggs and Ham’ were some of his most famous works. His rhymes and characters are beloved by generations. He died on September 24, 1991.