Aikido Centers of New Jersey has 7 locations throughout Jersey and in Pennsylvania, which offers Greg O' Connor's books and methods on defense, stress alleviation and healthy ways to stay fit including exercise. The center uses Aikido a unique martial art that helps people use self defense with respect. It allows new members to observe a class for no additional cost. It provides beginner classes for a initial training steps including terms, warm-ups, breathing and falling techniques and other exercises. It provides classes for children and adults with beginner, intermediate and advanced classes.