Download or read book Twelve Keys to an Effective Church written by Kennon L. Callahan and published by Harper San Francisco. This book was released on 1983 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tested with thousands of users, this in-depth study guide discusses new and useful ways to interpret and work through Twelve Keys to an Effective Church. It also discusses the key principles outlined in Twelve Keys and their biblical connections. TIMING: Purchase one book for each member of your planning group