Ryan Ann Hunter is a pen name for Pamela D. Greenwood and Elizabeth G. Macalaster, who have teamed up to write books about bridges, tunnels, skyscrapers, airplanes, robots, the history of flight, and women spies. Their books have garnered several awards, including the Children’s Book Sense Pick, the Chicago Public Library Best of the Best, Parenting magazine Book of the Year award, Oppenheim Toy Portfolio Gold Best Book award, and Austin Young Engineer’s Award.

A native of North Carolina, Jeanette Little is an artist and illustrator living and working in Portland, Oregon. She received her BFA in painting from East Carolina University and then studied in the University of Oregon's MFA painting program. Her work has appeared in several publications as well as on national television. She has exhibited across the United States and has pieces in private collections from New York to Los Angeles.