Shaun Zetlin 
Push-up Progression Workout for a Stronger Core 

"Push-Up Progression Workout for a Stronger Core" is a twelve push-up journey to progress by performing a variety of push-up techniques. This book discusses how crucial the push-up is in regards to training the core, upper body, and lower body. By strength training your core stabilization muscles first, and your core movement muscles second, you will create overall functional strength in your core while obtaining that lean, aesthetic look we all desire. Performing these push-ups will improve your posture drastically while you develop more strength in your upper and lower body. The push-ups outlined in this book can be performed quickly and conveniently at home or on the road. Most importantly, no matter your fitness level, this book shows you how the push-up can benefit everyone!