The term GRINCH'S CREATOR is referring to the author of the classic children's book 'How the Grinch Stole Christmas!', Dr. Seuss (also known as Theodor Seuss Geisel). Dr. Seuss was an American writer, poet, and cartoonist who wrote over 60 books for children. He is best known for his imaginative stories and rhymes that have been enjoyed by generations of children. His works have been translated into more than 20 languages and sold over 600 million copies worldwide.