Book excerpt: The bestselling dog training book is now completely updated, but still refreshingly uncomplicated. A practical guide to positive training techniques for your puppy or older dog, it covers basic commands, includes information about walking on a leash, housetraining, and other “good dog” behaviors, and covers ways to correct objectionable behaviors. It even addresses issues common to rescue and shelter dogs, including shyness and insecurity. A new chapter on the canine personality profile helps you understand your dog better.