Natural Church Development by Christian Schwarz provides church leaders with a way to measure their progress in eight quality characteristics of a local church. As churches shore up each area, greater growth and mission fulfillment ensues. We recommend this book for churches that have already addressed the underlying issues that may impede church growth. Schwarz assumes the church using this book is systemically healthy, if not, we refer you to the resources sited above by Dr. Ken Quick and Mark Barnard.