Andrew Mason currently lives in the UK but lectures worldwide. Having completed his training in Āyurveda and Rasa Shāstra he now focuses his energies on cataloguing the practices of ancient medical systems, particularly those deeply aligned with herbo-metallic- mineral preparations. To date he has produced four volumes of work detailing some of these techniques. Each of these volumes gives a unique glimpse into the ancient practice of Rasa Shāstra, rarely seen outside of India or Sri Lanka. For more information please visit the author’s website.