For the first time, lithotherapy is presented as a healing technique complete in itself. The first part of this book outlines the basic principles. By understanding them, individuals will be able to work on the therapeutic effects of each stone. The second part of the book introduces the stones one by one with detailed explanations and beautiful colour illustrations. The information provided is not based on subjective sensations or isolated discoveries, but is the fruit of systematic research, referring only to reproducible effects. All the descriptions of the stones are comprehensible, pertinent and based on their mineralogical properties. The effects of the stones are described with reference to four areas: spiritual, psychological, mental and physical. The author also mentions the traditional uses of each stone and suggests the best applications.