The Cat in the Hat is a 1957 children's book written and illustrated by American author Theodor Geissel l, using the pen name Dr. Seuss. The story centers on a tall anthropomorphic cat who wears a red and white-striped top hat and a red bow tie. The Cat shows up at the house of Sally and her brother one rainy day when their I parents is away. Despite the repeated objections of the children's fish, the Cat shows the children a few of his tricks in an attempt to entertain them. In the process, he and his companions, Thing One and Thing Two, wreck the house. As the children and the fish become more alarmed, the Cat produces a machine that he uses to clean everything up and disappears just before the children's parents comes home.