Geisel wrote more than 60 books. He got the ideas for his stories from the animal sounds from the nearby zoo, because he could hear them when he opened the window.Though most of them were published as Dr. Seuss, he also wrote 13 books as Theo. LeSieg and one as Rosetta Stone (a reference to the Rosetta Stone).Theodor Seuss Geisel is one of the most famous children's authors of all time. More @Wikipedia
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