Gives us the start up of this origination by two well known theologians/scholars D.A. Carson and Timothy Keller. They see the issue and the decline and many of the unhealthy churches. Main theme is the theology being taught and used without being misconstrued. So this is an attempt to get individuals back to sound doctrine on the whole Gospel of God. They go out to organizations and in missions and preach these truths and break them down with an acronym that is biblical and easy to understand. This book is the first one to give you the scope of who they are and what they are about and what their aim is basically mission for this start up of this organization. The Gospel Coalition. There are sever other booklets on different topical doctrines of the Bible which are the essential to the theology to the Bible. I got the whole set and it is right on and a great refresher for me and is strongly recommended for babes in Christ those who just came to the LORD and surrendered their lives to Him. It is their hope by putting this together that other well respected known Christians will follow suite and say yes we have a problem and let's address it and in out context.