Welcome to Cooperís Dog Training and Behavior Modification. My goal for every one of my clients is to have a sound and trusting relationship with their dog. I use positive methods to work on everything from basic obedience to aggression. I bring the education and experience needed to address your dogís needs. Iíve worked with top trainers around the country and bring ten years experience working with dogs of all breeds. I am also a Certified Professional Dog Trainer and a professional member of the Association of Pet Dog Trainers. Please browse this site to learn more about Cooperís Dog Training and Behavior Modification and give me a call in Portland, Oregon at 503-452-3065 so that we can work together to form a strong, positive relationship between you and your dog.