Punch Boring in the Face Pump up your fitness routine by following former Olympic boxer Jennifer Dugwen Chieng’s badass boxing regimen. It’s a high-intensity, full-body workout that is just as fun as it is impactful! This book teaches classic boxing techniques with lessons on footwork, punches, endurance, core strengthening and more. Hooks, Uppercuts & Strikes Intense Crunches Partner Work Quick Feet & Sprints The exercises in Badass Boxing Workouts really pack a punch. You’ll find yourself gaining stability, muscle tone, stamina and self-improvement, all while transforming your body and kicking ass.