Stuart J. Murphy is a visual learning specialist. A graduate of the Rhode Island School of Design, he has a strong background in design and art direction. He also has extensive experience in the world of educational publishing. Drawing on all these talents, Stuart J. Murphy brings a unique perspective to the MathStart series. In MathStart books, pictures do more than tell stories; they teach math. Stuart J. Murphy and his wife, Nancy, live in Boston. Kevin O'Malley has illustrated many entertaining books for children, including Too Many Kangaroo Things to Do! By Stuart J. Murphy, Cinder Edna by Ellen Jackson, and his own Carl Caught a Flying Fish. Kevin O'Malley lives in Baltimore, Maryland.