Great book by great people. For more than a decade I have been a fan of Donna Eden, a master healer who actually sees energies and has taught thousands (who don't see energy) how to help themselves and others using energy techniques. You could say she represents soul and David Feinstein, her husband, represents spirit. And Gary Craig, the wonderful benefactor who gave away his EFT technique to help all humanity, is also a co-author.
Yes, you can get the basics free from internet sites: I first studied and successfully used EFT this way and more recently found this book, which synergises David's expertise in psychology (he is a clinical psychologist) and Donna's fabulous understanding of energies, highly useful. The other energy techniques presented in the second half include a number of helpful and powerful - yet simple - energy techniques collected from around the world by Donna and taught in her introductory workshops. I always try to attend these when Donna is in the UK because of the sheer pleasure of being in her joyful presence (just sitting in a room with her is a healing session in itself).
Note: this edition is out of print and the new version (seems identical, I bought both and gave one to a friend) is called "The Healing Power of EFT and Energy Psychology: Revolutionary Methods for Dramatic Personal Change".
[Later note: Of the many, many healing modalities I have learned about, tried, trained in, or had sessions for over the last 2 decades, I am most impressed with the new mental/emotional/physical energy healing process explained in "The Healing Code" by Loyd/Johnson/Eble. There are hundreds of personal successes, including physical healings, listed in the reviews on Amazon.com.]