Pigeon Math (Hardcover) (ISBN-13: 9781943147625)

Asia Citro has an M.Ed in Science Education and was a classroom science teacher for many years before deciding to stay home full time after the birth of her daughter. She lives near Seattle with her wonderful husband, two awesome children, two destructive cats, and a terrarium of happy bugs. She is the author of 150+ Screen-Free Activities for Kids, The Curious Kid's Science Book, A Little Bit of Dirt, the chapter book series Zoey and Sassafras, and Vroom Vroom Garbage Truck. Her work has been featured on Apartment Therapy, The Chicago Tribune, Today, Disney Baby, MSN, King 5 TV, New Day Northwest, and Highlights, among others.

Richard Watson spent many of his younger years drawing medieval knights, dragons, and entire comic books inspired by his love of reading. He studied illustration at Lincoln University and lives in the north of England.