Aubrey Malphursnbsp;(PhD, Dallas Theological Seminary) is Senior Professor of Educational Ministries and Leadership and Pastoral Ministry at Dallas Theological Seminary and President of the Malphurs Group. He engages in church consulting, training and speaking, as well as the author of more than twenty ministry resource books.
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.