The canine species is one of the most ancient domesticated animals in existence, and as such, their behavior has been studied extensively over the centuries. Becoming a dog trainer means being knowledgeable in competency-based dog training techniques, as well as being able to recognize and understand various canine behaviors. It is important for any aspiring dog trainer to understand the different types of canine behaviors, and the different ways of training them. This course guide and training manual is a comprehensive guide to becoming a successful dog trainer. It covers the basics of dog training, as well as more advanced techniques for training fearful dogs, nervous dogs, anxious dogs, aggressive dogs, and adopted shelter dogs. It also covers strategies for dealing with difficult clients and setting reasonable expectations. All the techniques outlined in this guide are evidence-based on the latest research in canine behavior.