In the United States, it’s no secret, people are leaving Christian churches. Articles and books about this phenomenon land at regular intervals, but none so far at the scope of The Great Dechurching. The authors report on the “largest and most comprehensive” sociological study of “dechurching in America,” and then assess the mass church departure through the categories of beliefs, behavior, and belonging. Aside from general interest, The Great Dechurching seems set up best to serve clergy and parachurch leaders who may be able to position their own settings within the demographic shifts Jim Davis and Michael Graham describe. Read on for our Christian review of The Great Dechurching.