What two or three books on preaching have profoundly impacted your thinking? The first book that affected my thinking was John Broadus's On The Preparation and Delivery of Sermons. A second book that really hit me hard was John Stott's book The Preacher's Portrait in which he explained five New Testament words that pictured the preacher's vast responsibility and duty. Then I read D. Martyn Lloyd-Jones's Preachers and Preaching. Those three have influenced me greatly.