The book I recommended to you is very good. If you like dogs, it is worth buying.
By the way, a copy of "How to Train a Good Dog" for 30 yuan is a supplement of Henan Science and Technology Publishing House.
The method is simple. You can train yourself. It's much more affordable than sending a pet school. I know the pet school. Primary training (sitting, lying, etc. Shake hands and refuse to eat) costs more than 3000 yuan. I'm talking about the price of Xi 'an, which is more expensive than buying a dog. Now 1 0,000 yuan can buy a purebred dog. Of course, Tibet, Austria and so on.