Very complete course ! Simon makes the explanations of the asanas crystal clear, and I understood how important the kidneys area is, stiff in most people, including me, and how important it is to properly work on it. Some asanas are so misunderstood by majority of yoga teachers, I hope that more and more yoga teachers will do this course, to understand the biomechanics of the asanas. Deeply recommended for fitness trainers also, Squats and push-up explanations are gold.