Brother Andrew began taking Bibles to Christians behind closed borders in 1955. That work has since developed into Open Doors International. He is the author and coauthor of numerous books, including God's Smuggler, The Narrow Road, and Light Force. When not traveling, Brother Andrew makes his home in the Netherlands.
Al Janssen has cowritten or authored more than twenty-five books, including Light Force. He is chairman of the board for Open Doors (USA) with Brother Andrew and is director of communications for Open Doors International. Janssen lives in Colorado Springs, Colorado.