What in your POV is the best book on Biblical Separation? I have the Dividing Line, but have thought about purchasing one of the following books that may be more practical rather than historical.
Be Ye Holy
Set apart was written by a Conservative Evangelical and not a Fundamentalist, so am not sure how well he will communicate the subject. But the book looks to be good. The doctrine of separation is such a needed and unfortunately not touched very much in most churches (outside of Fundamentalist circles).