Twelve Keys to an Effective Church: Strong, Healthy Congregations Living in the Grace of God , 2nd Edition

Kennon L. Callahan, B.A., M.Div., S.T.M., Ph.D. — researcher, professor, and pastor — is one of today's most sought-after church consultants and speakers. Author of many books, he is best known for his groundbreaking Twelve Keys to an Effective Church, which has formed the basis for the widely acclaimed Mission Growth Movement.