Experts are often said to have forgotten more about their subjects than other people will ever know. Those who have written books on dog training during the last century were not exceptions to this. In gaining the experience that gave them the authority to advise others, many basic realities became second nature to them ? too familiar to seem worth passing on. In short, they were told what to do but not how to do it. Wilson Stephens fills that gap by explaining what he has had to find out for himself the hard way, but would have been glad to have been told twenty years ago.