About the Author

Katy Hall has written all of the Life With Louie books for HarperEntertainment. She and Lisa Eisenberg have collaborated on many fun flap books, including Hearty Har Har; Gobble, Gobble, Giggle; Jingle Jokes; Easter Crack-ups; and Trick or Eeek! Ms. Hall lives in New York City. 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.