This is a 'how to heal through the energy field' guide.  Immensely popular with yogis and massage therapists alike, this book offers alot of knowledge and insight about the energetic body as well as guidance for the modern day healer how to best work with these energies. Brennan covers auras, auric fields, the chakra system and more.  This is definately a reference book you will want to keep and refer back to throughout your development. The book is full of exercises and guidance so that the lay person can work on self-healing with guidance.