Jeffrey Bennett is the author of El mago que salvó el mundo as well as the books in the Science Adventures with Max the Dog series. He is an astrophysicist and educator who proposed the idea for and helped develop the Voyage Scale Model Solar System--the first science-oriented exhibit approved for permanent installation on the National Mall in Washington, DC. He lives in Boulder, Colorado. Alan Okamoto was a children's book illustrator and a space artist who completed commissioned work for the Air Force, numerous aerospace corporations, and college textbooks.