Tim Wallace-Murphy has written an excellent history that shows how Christians,Jews and Muslims,who all believe in the same God ,have had such great difficulties in dealing with one another in the areas of Brotherhood,Tolerance,Justice and Peace.
Throughout the ages, there have been an unbelievable number of organizations emerge,disappear and endure,which make it near to impossible to sort it all out;especially in one short book,;but this author has made a pretty good attempt at it.
There have been literally thousands of books on the subjects covered in this book;but if one is looking for a well organized overview ,you would be hard pressed to find one any better.
However;don't think that when you finally finish this book ;that you will be able to sort all the truth from fiction,legend and outright error;forget it.It is all so involved,and complicated that it has been studied and investigated by many thousands of researchers for many hundreds of years.
I have read many books on the Middle Ages,and the Knights Templar in particular ;as well as the origins of organizations of today;and this book adds a lot to my understanding of it all.