Purification is a magic bases. It is required for any practice, either for ritual, or other alternative therapies. In addition to being a quality book covering all areas, whether the purification of places, people, objects, stones etc ... the book also presents great interest to explain them in a clear and pleasant style, finishing and with the permanent blurring that some writers love to use to surround himself with an aura of mystery that has no place. In short, a complete and well explained approach, acquire absolutely!