Clifford Penner is a Canadian clinical psychologist and educator. He received his B.A. at Bethel College, his M.A. from Fuller Theological Seminary, and his Ph.D. from Fuller's Graduate School of Psychology. Penner and his wife are sex therapists and educators at several colleges and school systems. They also produced a video series, The Magic and Mystery of Sex. Penner's book, Men and Sex: Discovering Greater Love and Intimacy with Your Wife won the Gold Medallion Marriage Book Award from the Evangelical Christian Publishers Association.
Joyce Penner, a clinical nurse specializing in sexual and parenting issues, is a member of the Ministry Council of Lake Avenue Church.
Since recording his first book for the Kansas Audio Reader Network in 1985, Tom Parks has enjoyed giving voice to stories. He has been nominated for Audie Awards and has received several AudioFile Earphones Awards, and reviewers have described his performances as "conversational," "energetic," and "sincere."