Frost, Michael & Hirsch, Alan. The Shaping of Things to Come. Peabody, MA: Hendrickson Publishers, 2003. Frost and Hirsch propose, and build their book upon, three overarching principles that they see as basic to emerging or missional church and further inform the value we’ll come to you. I have found it extremely valuable to explore these principles – that of being incarnational (not attractional in ecclesiology), messianic (not dualistic in spirituality) and apostolic (not hierarchical in leadership). This book is well written and essential reading.