Watch a video interview with Sara Pennypacker. Sara Pennypacker, author of the Clementine books, was a painter before becoming a writer and has two absolutely fabulous children who are grown now. She has written several books, including Stewart's Cape and Stewart Goes to School, both illustrated by Martin Matje, and Dumbstruck. When she was in school, she never had any problem at all paying attention. Okay, fine. That last part was about somebody else. Sara lives on Cape Cod, Massachusetts.