All you really need to do is watch his tv shows and apply what he teaches you on them. My wife is a dog trainer on the side and uses many of the techniques and ideals behind Caesers teachings. Works wonders on our dog which is a pitbull and our cat appreciates it too!
btw. Dont waste your time with the trainers at places like Petsmart and others. They all use positive reinforcement techinques which seems ok to talk about it but in reality doesnt work worth a shit.