Double the Dinosaurs: A Math Reader

DIANA MURRAY is the author of many picture books for kids and her poems have appeared in children’s magazines such as Highlights, High Five, Spider, and Ladybug. She grew up in New York City and still lives nearby with her husband, two very messy children, and a goldfish named Pickle. Her favorite pizza toppings are mushrooms and olives.MARIA KARIPIDOU is an illustrator based in Germany. Her work has appeared in many children’s books and magazine as well as commercial advertisements for international clients.