

He also worked as an illustrator for advertising campaigns, most notably for FLIT and Standard Oil, and as a political cartoonist for the New York newspaper PM. He left Oxford in 1927 to begin his career as an illustrator and cartoonist for Vanity Fair, Life, and various other publications. Seuss" as an undergraduate at Dartmouth College and as a graduate student at Lincoln College, Oxford. His work includes many of the most popular children's books of all time, selling over 600 million copies and being translated into more than 20 languages by the time of his death. He is known for his work writing and illustrating more than 60 books under the pen name Dr. Theodor Seuss Geisel ( / s uː s ˈ ɡ aɪ z əl, z ɔɪ s -/ ( listen) Ma– September 24, 1991) was an American children's author and cartoonist.
