The Grinch, also known as Theodor Seuss Geisel, was an American cartoonist, writer, and illustrator who is best known for his children's books. His books are known for their clever rhymes, funny characters, and memorable messages. The Grinch is the main character in a book by the same name, "How the Grinch Stole Christmas!" It tells the story of a grouchy creature who lives on a mountain overlooking a village. One Christmas, the Grinch is determined to steal the holiday from the villagers by taking their presents and decorations.