Ivan Boikov

I put my own training and nutrition system for building lean muscle using calisthenics only in the form of this book. That's me on the book cover demonstrating results I obtained from this training. -Short daily workouts, the longest training session took 25 minutes.  - It's a bodyweight training = no need in wasting time for commuting to the gym, I mostly train in the yard near my appartment building.- My nutrition guidlines combined with that training method will allow you to add lean muscle mass with simple not so clean diet.- These full body workouts build not just a show muscle but a functional real world strength&conditionong that improved my performance both when I worked long hours as a full time blue collar worker and as a soldier on the frontlines.