Willow Creek has gone from being a church with small groups to being a church of small groups. Sharing insights from that transition, its two chief architects tell how your church---whatever its size and circumstances---can become a place where people of all ages can experience a powerful, transforming community. Part one presents the theological, sociological, and organizational underpinnings of small groups. You'll discover why they are so vital to church health. Part two moves you from vision to practice. Part three shows you how to identify, recruit, train, and support group leaders. And part four helps you deal with the critical process of change as your church develops its small-group ministry.