This is one of the better books I've read, regarding detailed descriptions of the layers of the aura, the various major chakras, what they relate to, and how to know if they're out of kilter, etc. So on that basis, I'd give it 4 out of 5 stars. BUT...
The 5 or so pages at the end of this book that actually seem to address the application of Reiki (what the title of the book pertains to, after all...)for the purpose of aura work seem to be hastily put together, as if by after thought. It's inconsistent with regard to the details (For example in one application, "no more than 7 minutes", but in another, "a long time" is okay...) And, especially in comparison to the other 90- plus percent of the book, I know that the author has the capacity to go into organized detail on the subject matter...
In regard to the actual title of the book and what it supposedly addresses, I was left with more questions than answers, by a wide margin.
Buy it on the basis of the good, plain- language detail of the energy body and chakras... but skip it if you're expecting the same on the topic of the book itself...