A dog trainer is a professional who teaches dogs specific behaviors and commands. They use various techniques to help dogs learn obedience, socialization, and skills for various activities, such as agility or therapy work. Trainers often work with both the dogs and their owners to ensure effective communication and understanding. Dog trainers may specialize in different areas, including puppy training, behavior modification, or service dog training. They often use positive reinforcement methods, rewarding desired behaviors to encourage learning. Many trainers also provide guidance on proper care and handling to promote a healthy relationship between dogs and their owners.