Lisa Graff is the author of several middle-grade novels, including A Tangle of Knots, which was long-listed for the National Book Award. Her first picture book was It Is Not Time for Sleeping, illustrated by Caldecott-Honor recipient Lauren Castillo, and her two forthcoming picture books are Wonderful You, illustrated by Ramona Kaulitzki, and Mr. Walker Steps Out, illustrated by Christophe Jacques. She lives with her family in Pennsylvania. www.lisagraff.com, Twitter: @lisagraff
