David Z. Nowell is the author of Dirty Faith as well as a speaker, and the President of Hope Unlimited for Children, a Christian nonprofit that ministers to sex-trafficked children, street orphans, and child prisoners. Prior to joining Hope in 2007, he spent most of his career as a senior administrator at several Christian colleges. He is a graduate of Baylor University with a Ph.D. in historical theology. He and his wife, Susan, make their home in Tennessee. Learn more at www.davidznowell.com where David blogs about faith, orphan care, and lifestyle stewardship.