He is the author of “T.D. Jakes: America’s New Preacher,” which analyzes major changes in the Black church culture and contemporary American religion, and co-author of “Holy Mavericks: Evangelical Innovators and the Spiritual Marketplace,” which looks at the appeal of celebrity preachers. His recent book, “Erotic Revolutionaries,” explores the topic of Black women, sex and pop culture. Next week: The Rev. Al Sharpton writes about his personal faith and finance. CNN’s “Almighty Debt: A Black in America Special” premieres October 21.