Michael J. Mantel is president and CEO of Living Water International, a faith-based global humanitarian organization. He previously spent seventeen years working for World Vision and nine years in business. He holds a PhD in organization development from Benedictine University.
William Sarris is an accomplished voice actor and narrator. In addition to narrating audiobooks, he has been the voice for radio and TV commercials, e-learning, medical training, online videos, and non-broadcast media. He is based in Connecticut.
Richard Stearns is president emeritus of World Vision US, where he served as president for twenty years. His bestselling book The Hole in Our Gospel was named the 2010 Christian Book of the Year.