I grew up with well-trained dogs--German shepherds--and after seeing legions of dog owners handle their charges badly, it's a treat to see Cesar Millan demonstrate the basics of dog psychology and pack leadership principles to folks who seem to know nearly nothing about handling dogs.
I particularly enjoy seeing Cesar's own pack of around 40 dogs, all rehabilitation cases, who all get along with one another. Cesar has an amazing ability to exhibit pack leadership. To see his dogs submit--rolling over, legs in the air, ears back--after a mere short "Shhh!" and a pointing of his finger...it's absolutely amazing.
You can also see more about his Dog Psychology Center by searching for Cesar Millan on the web.