Tim Muehlhoff is professor of Communication Studies at Biola University in La Mirada, California, and coauthor, with Richard C. Langer, of a forthcoming book from IVP Academic: Winsome Persuasion: Christian Influence in a Post-Christian World. It’s a good book, which I’ll review closer to publication date. For now, take a listen to my podcast with him for InfluenceMagazine.com: