Faster than a speeding bullet, more powerful than a vacuum cleaner, Mighty Maddie, the room-cleaning superhero, gives readers a playful lesson about the difference between light and heavy.

About the Author

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.

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