This book is a history of the Chuch of England, it's foundation, the endless conflicts between itself and other Christians and eventually of it's final establishment with England, and then about it's modern decline in the face of secularism. It also explains in depth the structure of the Church of England and the conflicts and divisions within it.
I agree with Archbishop of Canterbury Lord Runcie who describes this book thusly: "The best book on the C of E that I have read for years".
It includes a lot of honest criticism of the C of E, and statistics, and commentary and summaries along side in depth historical and structural information about the Church of England.