This book makes an important point. Many churches, in striving for numerical growth, in trying to be culturally relevant, and in attempting to meet the felt needs of their congregations are pursuing a trajectory that is a departure from the gospel. While the name Jesus is frequently evoked he is often portrayed more as a life-coach and dispenser of good advice than as a Saviour and sacrifice for sin. I have found this book helpful in outlining the forms the departures take and in warning of the dangers. Michael Horton gives many examples which he sets forth in his clear, readable style.