Puppy training, This book is enough Twenty years of puppies training experience tells us that incorrect selection of puppies, lack of understanding of puppies, lack of systematic training methods, lack of expert guidance in training, and other issues will eventually make it difficult to carry out puppy training. It took a lot of time, but the effect was not satisfactory. This book is designed for beginners' necessary cognition, knowledge, skills, and common training pitfalls. It is correct to choose this book. 20 years of experience in puppy training The author is my most trusted puppy training expert. The author began to engage in dog training as a marine soldier. After retiring, he has been working in a professional puppy training organization and has more than 20 years of experience in puppy training and research.