Franklyn M. Branley was the originator of the Let's-Read-and-Find-Out Science series and the author of close to 150 popular books about scientific topics for young readers of all ages. He was Astronomer Emeritus and former Chairman of the American Museum of Natural History-Hayden Planetarium.

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.