So far, the only positive thing I've ever heard about Sham Mortier is that his first name is the truth. I fortunately was able to examine his book on Bryce at a friends before I made what would have been the tragic mistake of putting down real $ for it. The damn thing is not worth the match it would take to light it, & the Sham should be required to reimburse anybody who bought it at least twice whatever they paid. The Kitchens' book however, is exactly the opposite. It is without a doubt the best instruction on how to use a program that I have ever run across.