Haddon Robinson (ThM, Dallas Theological Seminary, MA, Southern Methodist University, PhD, University of Illinois) is the Harold John Ockenga Distinguished Professor of Preaching at Gordon-Conwell Theological Seminary, and he is widely regarded as an expert in the area of preaching.
Jeffrey D. Arthurs (Ph.D., Purdue University) is associate professor of preaching and communication and dean of the chapel at Gordon-Conwell Theological Seminary, S. Hamilton, Mass. He is an active scholar, regularly presenting papers at conferences and writing articles for several leading periodicals.