This guide is the culmination of 20 years of experience in marijuana cultivation and collaboration with growers from all over Europe. For the enthusiast and professional alike, this is the most authoritative grow book to be released in more than a decade. With more than 200 photographs and 20 tables, it describes in detail how growers can maximise their yield and potency of their crops using state-of-the-art equipment and tools available from any gardening store. The first book to fully explain the newset growing technique, Screen of Green, that is sweeping through Europe.