Mark Mittelberg is a bestselling author, international speaker, and the Executive Director of The Lee Strobel Center for Evangelism and Applied Apologetics at Colorado Christian University (StrobelCenter.com), which offers accredited online BA and MA degrees, as well as certificate courses.

Mark recently completed the all-new book and training course, Contagious Faith: Discover Your Natural Style for Sharing Jesus with Others. Prior to that, he was the primary author of the Becoming a Contagious Christian training course (with Lee Strobel). This course was translated into more than twenty languages and helped nearly two million people around the world share Christ in natural ways. He then wrote the leadership-oriented book, Becoming a Contagious Church, which presents an innovative blueprint for church-based evangelism.

Mark’s published materials also include the Making Your Case for Christ training course, and The Case for Christ Daily Moment of Truth devotional (both with Lee Strobel). His book Confident Faith was the winner of Outreach Magazine’s apologetics book of the year. His smaller evangelistic book, The Reason Why Faith Makes Sense, is an update of a classic that touched millions of lives — recreated by Mark for a new generation. He also wrote The Questions Christians Hope No One Will Ask (with Answers), which addresses the ten spiritual questions believers most want to avoid. Prior to that Mark collaborated with Strobel to produce The Unexpected Adventure, a story-based book designed to encourage Christians to seize everyday opportunities to talk about Jesus. Mark’s published pieces have sold a total of some three million copies.

Mark was the original evangelism director at Willow Creek Community Church in Chicago, and then served as Executive Vice President of the Willow Creek Association. He was also an editorial consultant and periodic guest for Lee Strobel’s television show, Faith Under Fire. He and Strobel have been ministry partners for more than thirty years.

After receiving an undergraduate degree in business, Mark earned an MA in Philosophy of Religion, graduating magna cum laude from Trinity International University in Deerfield, Illinois. In addition, he received an honorary Doctor of Divinity degree from Southern Evangelical Seminary in Charlotte, North Carolina. Mark and Heidi live near Denver, Colorado, and are the parents of Emma Jean and Matthew, both of whom serve in ministry roles.