Ellen Mayer is an award-winning children's author who has worked as an education researcher and early literacy home visitor. Leaves to My Knees is her ninth book for children. Her other math story books, Banana for Two, Clean Up, Up, Up!, and Leaves to My Knees were also published by Star Bright Books. She lives with her husband and very large cat in Cambridge, Massachusetts. Visit: ellenmayerbooks.com. Ying-Hwa Hu is an award-winning illustrator. Her work has been exhibited at the Bologna Book Fair and The Society of Illustrators Original Art Show. Ying-Hwa has illustrated over 30 books, many of which she collaborated with her husband Cornelius Van Wright, also an illustrator and author. She lives in New York City with her husband. Visit: www.yinghwahu.com.