Helaine Becker is an award-winning children's book author. She also writes for children's magazines and kid's television shows, including four seasons of Dr. Greenie's Mad Lab", a segment on the environmental show Planet Echo airing on Canada's APTN. Her books include Counting on Katherine: How Katherine Johnson Saved Apollo 13 , Stress Less: Tips and Tools to Help You Chill , and Sloth at the Zoom . Dow Phumiruk is the award-winning illustrator of Counting on Katherine: How Katherine Johnson Saved Apollo13 , which won the Bank Street Cook Prize and was named an NSTA Outstanding Science Trade Book as well as an NCTM Mathical Honor Book, among many other honors; An Equal Shot: How the Law Title IX Changed America ; and Maya Lin: Artist-Architect of Light and Lines , which was an Amazon Best Book of the Year and an NCSS Notable Social Studies Trade Book for Young People. A general pediatrician with a passion for art, Dow lives in Colorado with her family. artbydow.com".