The evangelical revival that swept England in the mid-1700s rode on the tidal wave of small-group discipleship. John Wesley and his Methodist preachers expected their parishioners to attend weekly meetings, where their spiritual growth could be monitored and encouraged. Dr. Henderson describes the genius of Wesley's class meetings and shows how similar small groups would strengthen Christian ministry today. David L. McKenna, president emeritus of Asbury Theological Seminary, calls Henderson's book a timely word for an urgent need.