Loren W. Christensen is a martial arts expert who served in Vietnam and spent nearly three decades in law enforcement. A professional writer since 1978, he has authored or coauthored nearly sixty books, including Warrior Mindset, Timing in the Fighting Arts, and The Mental Edge, as well as dozens of magazine articles.
A veteran of stage and screen, Peter Berkrot's career spans four decades, and his voice can be heard on television, radio, video games, and documentaries. He has been nominated for an Audie Award and has received a number of AudioFile Earphones Awards and starred reviews.