Agnieszka Biskup is a science writer and editor based in Chicago. She is a former editor for the science section of the Boston Globe as well as the children's science magazine Muse. In addition to children's books, she has also written many articles for newspapers, magazines, and websites. Her books have received awards from Learning magazine, the Association of Educational Publishers, and the Society of School Librarians International. Her book Football: How It Works (Capstone Press, 2010) was a Junior Library Guild selection.

Cynthia Martin has worked in comics and animation since 1983. Her credits include Star Wars, Spider-Man, and Wonder Woman for Marvel Comics and DC Comics, in addition to work as a storyboard artist for Sony Children's Entertainment and the Krislin Company. Cynthia's recent projects include an extensive series of graphic novels for Capstone Press and two issues of Blue Beetle for DC Comics. She also illustrated the book Alley of Shadows, published by Stone Arch Books.