This book, "Effective Church Leadership: Building on the Twelve Keys" by Kennon L. Callahan, is a valuable resource for those interested in Christian church administration and leadership. Published by HarperCollins in 1990, it is a hardcover book that weighs 13.7 oz. The book is written in English and covers topics such as Christian church leadership, administration, and governance.

The book is an excellent resource for those interested in building and developing their skills in effective church leadership. It provides a comprehensive guide to the twelve keys that are essential for any church leader. The book is perfect for anyone who wants to learn more about Christian church leadership and administration.