Nancy Krulik is the New York Times bestselling author of more than 200 books for children and young adults. She is the author of the fan favorite book series Katie Kazoo, Switcheroo; George Brown, Class Clown; How I Survived Middle School; and Magic Bone. She lives in New York.

Harry Briggs has worked as an illustrator for twenty-eight years, including work in editorial, educational, advertising, children's literature, a whole lot of greeting cards, and things he can't even remember! He graduated from Art Center College of Design in 1989 with a BFA in illustration. He has kids, pets, and the other trappings of mid-life. Oh, and his job is the greatest job in the world!