Tim Muehlhoff (PhD, University of North Carolina) is a professor of communication at Biola University in La Mirada, California; codirector of The Winsome Conviction Project; and a speaker and research consultant for the Center for Marriage and Relationships. His books include The God Conversation, I Beg to Differ,Winsome Conviction, and Winsome Persuasion, which received a 2018 Christianity Today book award in apologetics/evangelism.