Theodor Seuss Geisel, known as Dr. Seuss, was an American author and illustrator born on March 2, 1904. He is best known for his children's books, which include classics like The Cat in the Hat and Green Eggs and Ham. His unique style features whimsical characters and imaginative worlds, often accompanied by playful rhymes. Dr. Seuss's work has had a significant impact on children's literature, promoting early literacy and a love for reading. Over his career, he published over 60 books, many of which have been adapted into films and stage productions, making his stories beloved by generations of readers.