interesting book by the sum of knowledge it contains but has a major flaw: he eventually tired because it "fishing" for lack practical and fun applications to exploit this knowledge so generously granted. A good point: we always end up back in Hand this book to continue learning despite the difficulty of some chapters .... This book would be perfect if he could put his knowledge to a more level assimilation easily accessible ... It's still the most complete and richest that I know and I recommend it to those who like to deepen the topics they address.