Interesting stuff.
We'd already decided before we got Luca that we were going with the more modern positive reinforcement methods, after all it's what I use with the children I teach.
The woman lent me this book and the Cesar Millan book, I read 2 pages of that and put it down!! It's interesting to see the difference as well in her 11 month old puppy and my 13 week old puppy, based upon the different methods we've used!