Mara Rockliff is the author of many lively historical books for children, including Mesmerized: How Ben Franklin Solved a Mystery that Baffled All of France, winner of the Cook Prize and an Orbis Pictus Honor book. Her newest picture book biographies are Billie Jean! and Doctor Esperanto and the Language of Hope. She lives in Lancaster, Pennsylvania with her family. For more information, visit mararockliff.com.