MARCO MENCAGLI has graduated in agronomy and has been working in the field for over twenty-five years. He specializes in the design and maintenance of public parks and private gardens, as well as of paths and facilities for the enjoyment of sanctuaries and protected areas. For twelve years he collaborated with Ente Parco Regionale della Maremma (board of the Regional Park of Maremma) as agronomy consultant. For some time now he has been focusing on the more therapeutic aspects of plants and natural environments. He is also a landscaping consultant for many prestigious touristic facilities in Tuscany and Lazio. MARCO NIERI is a bioresearcher and a specialist in eco-design and environmental protection. He is the original designer of Bioenergetic Landscapes, an innovative technique to study the effects of plant bioelectromagnetism on the human body, and the creator of therapeutic landscapes both in Italy and abroad. He organizes guided visits in natural parks and forests, for a direct experience of the biological interactions with plants and of the healing effect of trees on our organism. He is the author of Bioenergetic Landscape.