What is the most effective way for Christians to explain their Christianity to the secular world? The standard approach has been to quote Scripture and to argue truth propositions. A more effective approach may be summarized by one word: persuasion. The power of persuasion was wrapped into the message of Christ and his disciples, and it punctuated the arguments of great apologists through the ages. Os Guinness, one such apologist, brings fresh insight to help you become a persuasive voice for Christian truth today. Os is a senior fellow at the Oxford Centre for Christian Apologetics in Oxford, England.