Matt Schifferle is a calisthenics coach and fitness trainer in the Denver, Colorado area. He’s the founder of Red Delta Project and author of several books about calisthenics, including Calisthenics for Beginners: Step-by-Step Workouts to Build Strength at Any Fitness Level and Suspension Calisthenics: How To Build Muscle & Strength With The Weight Machine That Fits in Your Pocket. RedDeltaProject.com
