Tim MacDonald is an information technology manager specializing in healthcare data applications. He is a former Air Force officer and holds both Bachelors and Masters Degrees in Computer Science. Mr. MacDonald has been writing books for children since 2001, when he wrote his first picture book, She Bought a Pickle for a Nickel. In 2004, he began writing middle grade fiction. Time Box is his second novel. He lives in Phoenix, Arizona with his two sons and a cat.