I very seldom believe that a book is a "must read," but this is one of those times. Over the past year-and-a-half I have been examining the Orthodox Faith. Coming from the Independent Christian Churches/Churches of Christ (Restoration or Stone-Campbell Movement), I was well-versed in Alexander Campbell's writings. The Church Fathers were looked at only to reinforce the Movement's views. Even any writer between Luther and Campbell was suspect.This book helps to set right the overlooked Church Fathers. Mr. Hall helps open the doors in a very readable way for Protestants. With the strong basics he presents, the reader will be drawn to further study. I wish that I had used this book first in my studies on Orthodoxy.