Mindful Movements: Ten Exercises for Well-Being by Thich Nhat Hanh. A wonderful book that is full of peaceful illustrations and accompanying video that leads you through 10 movements that you can do to reduce stress.
Use the power of breathing to help your body return to rest and recovery. Healing can only happen once out of fight or flight. Simple and quick breathing techniques that can be used any time, anywhere.
Progressive Relaxation-A CBI: Applying the Research