The first half of this book explains some of the science behind animal training. It does a serviceable job. The last half uses various case studies to demonstrate how people train animals. The case studies were disappointing. They didn't add much to the book or tie in very well to the principles discussed in the first half. The little blue boxes at the end of each example used to categorize various stimuli and cues and the like ended up being confusing because it didn't always match up with what was described in the example--certain stimuli being missing or obviously miscategorized, for example.