I can't comprehend why this was modded down. The book is fascinating and provides us with an insight into valuation. It really is a topic that is difficult to sum up in any reasonable time. I wish I could find a free source for it, but I found the google preview.

http://books.google.ca/books?id=F3WpzcinFc4C&dq=Didier+S...

Please go easier on the thumbs down stuff.