Roger D. Duke is an author, theologian, educator, itinerant preacher, and was a professor at several institutions of higher learning including Union University, Baptist College of Health Sciences, Liberty University, Memphis Theological Seminary, and Columbia Evangelical Seminary. Professor Duke also serves as a Consulting Editor for B & H Academic's Studies in Baptist Life and Thought series. He retired in 2016 to focus on a speaking and writing career by forming the Duke Consulting Group.