Hop on Pop (ISBN 978-0-394-80029-5) is a 1963 children's picture book by Dr. Seuss (Theodor Seuss Geisel). It was published as part of the Random House Beginner Books series, and is subtitled "The Simplest Seuss for Youngest Use". It contains several short poems about a variety of characters, and is designed to introduce basic phonics concepts to children.