Certified personal trainer and global martial-arts competitor Zak Lee roundhouse kicks through the geographic barriers that separate him from his students. During his online courses, he pulls from 30 years of martial-arts and fitness experience—accrued at studios throughout the world—to transform newbies into kick-smart experts. The curriculum, provided through the National Council of Certified Personal Trainers, accredits and prepares users to teach kickboxing and martial arts, with a focus on leadership skills and technical proficiency. Lee’s sessions detail proper alignment for kicks and punches, discuss how to string the two together to build different combos, and outline the best maneuvers for punching a piano in half. Each class also includes guides on building drills, conditioning exercises, and sample workouts for equipment-based or equipment-free kickboxing.