Stephanie Sammartino McPherson wrote her first children's story in college. She enjoyed the process so much that she's never stopped writing. A former teacher and freelance newspaper writer, she has written twenty-eight books and numerous magazine stories. She especially enjoys writing about science and the human interest stories behind major discoveries. Stephanie and her husband, Richard, live in Virginia but also call California home. They are the parents of two grown children.

Matt Doeden was born in southern Minnesota and lived parts of his childhood in Golden Valley, Minnesota, and Madison, Minnesota. He studied journalism at Mankato State University, where he worked at the college newspaper for three years. In his senior year, he served as the paper's Sports Editor, which put him in charge of the entire sports section, the sports writers, and the photographers. He covered mostly college sports, but also the Minnesota Vikings, who held training camp at MSU. His work allowed him to meet and interview people like Dennis Green, Cris Carter, Robert Smith, and more. Matt went on to work as a sports writer for the Mankato paper, and then he got a job as an editor with a small children's publisher called Capstone Press, and in 2003 he decided to start his own business as a freelance writer and editor. Since then, Matt has written and edited hundreds of books. Lots of them are on high-interest topics like cars, sports, and airplanes. He also writes and edits on geography, science, and even math.