Gravity Mastery is a comprehensive guide to mastering advanced calisthenics skills such as handstand pushups, 90 degree hold and more. With step-by-step instructions and detailed illustrations, this ebook provides you with the essential knowledge and techniques to improve your strength and master this skills. You'll learn proper form and technique for each exercise, plus creative workouts and challenges to keep you motivated. With Gravity Mastery, you'll master advanced skills like handstand pushups, 90 degree holds, and 90 degree Hspu with proper technique and a challenging workout.