Books of sermons are all too rare on the lists of new releases these days, so we always celebrate when such a book comes along. Mercer University Press has released Why Be a Christian? The Sermons of Howard P. Giddens, edited by Michael L. Ruffin. (Ruffin is a frequent contributor to Preaching and Preaching On-Line.) Giddens was a Georgia pastor and long-time professor at Mercer University, and his sermons will be useful for both inspiration and preaching insights.