Sara Pennypacker is an American children's author best known for her series of books about a mischievous young boy named Clementine. Pennypacker has written over 30 books, including the popular Pax, Summer of the Gypsy Moths, and The Talented Clementine. She has won numerous awards, including the E.B. White Read Aloud Award, the Christopher Award, and the Irma Black Award. Pennypacker is also a passionate advocate for literacy and education, and has spoken at schools and libraries around the world. She currently lives in Massachusetts with her family.