if of you are interested in radionics, you should first consider reading from tansley because he is one of the few authors that knows what he's talking about. to delve into this area of spirituality means encountering many persons who will try to influence you to usually buy something that has "magical powers" or try to mislead you to harm towards yourself or others. tansley is definitly not one of them, throughout the book he consistently stresses that radionics is here for personal spiritual growth and not to try anything with out knowledge about the subject. the book is very interesting, and granted you will need to read up much more to understand the bigger pictures of rays, radionics, and chakras, but the book is definitly worth reading as a basic understanding of the three elements.