Born again at sixteen, John Marks later abandoned his faith. In Reasons to Believe he attempts to cross a deep cultural barrier to understand those who now condemn his way of life. He speaks at length with missionaries, political activists, theologians--the rich and powerful, the poor and broken, and the pastors who have turned small congregations into megachurches. The result is a remarkable, intimate portrait of evan-gelicals, one of the most influential forces in America today, and the unforgettable story of how a lapsed believer came to terms with his faith.