My strengths are in my ability to relate to and understand the psychology of both the humans and the dogs.

You can have a nervous, fearful, anxious dog that makes poor choices (barks, growls, lunges, attacks, runs, hides) towards people, other dogs, bikes, skateboards etc, or you can have a nervous, fearful, anxious dog that instead of simply reacting to their nervousness, fearfulness or anxiety, defers to you, and makes great choices around all of the above listed items. Left to figure it out on their own, with no real information about what an appropriate response is, dogs will simply react, and...

You can have a nervous, fearful, anxious dog that makes poor choices (barks, growls, lunges, attacks, runs, hides) towards people, other dogs, bikes, skateboards etc, or you can have a nervous, fearful, anxious dog that instead of simply reacting to their nervousness, fearfulness or anxiety, defers to you, and makes great choices around all of the above listed items. Left to figure it out on their own, with no real information about what an appropriate response is, dogs will simply react, and are liable to make very bad choices. It's your job to show your dog what to think, how to feel, and how to react when faced with things that unnerve them. This takes knowledge and leadership on your part and establishing the right relationship with your dog.