1SERIOUSSET — High-performance training system

This book is a guide to gym training. All information is presented very briefly, clearly, and to the point — no fluff, no pomp — and it’s easy to understand even for people unfamiliar with sports terminology. You won’t find scientific jargon or overly long, complex sentences here. It reads easily and naturally.
1 SERIOUS SET is the only effective training system for natural athletes that guarantees results in strength gains and muscle growth!