Lisa Graff is the author of numerous picture books and middle-grade novels, including THE GREAT TREEHOUSE WAR, ABSOLUTELY ALMOST, and A TANGLE OF KNOTS, which was nominated for the National Book Award. Her most recent novel, A SCAR LIKE A RIVER, was published by Christy Ottaviano/Little, Brown Books for Young Readers in February, and has received four starred reviews. A former children's book editor, Lisa currently teaches in the Creative Writing MFA program at Rosemont College. She lives with her family outside of Philadelphia. Learn more at lisagraff.com.