Elmo's Trick-or-Treat Fun!: A Halloween Counting Book (Sesame Street)

Andrea Posner-Sanchez has worked as an editor in children’s publishing for more than 30 years. She is the author of many, many books including Elmo Pretends…He’s a Chicken, Carol Burnett: A Little Golden Book Biography, and I’m Going to Kindergarten. She lives in New York City with her husband, daughter, and chinchilla.

Joe Mathieu has illustrated countless books for children, including Big Frank’s Fire Truck, Sesame Street titles, books in the Cat in the Hat’s Learning Library series, and many more.