Why do so many young adults (18 to 22) leave the church, and what will it take to bring them back? This important question is examined and duly answered in Essential Church?, a follow-up to Thom S. Rainer's best-selling Simple Church cowritten this time with his son, research expert Sam Rainer. The book is based on a study of one-thousand so-called "church dropouts" who were interviewed about why they left. Their answers...