It has been a while since there has been a book suggestion, so here are two for you:
Polishing the Mirror – How to Live From Your Spiritual Heart
Ram Dass with Rameshwar Das
Ram Dass, originally Richard Alpert, trained with Neem Karoli Baba in the 1960s after working at Harvard University on psychedelic psychology. After his visit to India in 1966 he returned as someone now regarded as a ‘Johnny Appleseed@ in terms of Eastern Spirituality. I found there were many aspects of the story telling in this book that can easily be related to the Gokai (Precpts) and to Reiju. There are many helpful discussions on the wisdom he received from Neem Karoli Baba (some of which are both funny and poignant at the same time) on the theme of “Love everyone and tell the truth” – the truth being your True Self.
The Chimp Paradox – The Mind Management Programme for Confidence, Success and Happiness
Professor Steve Peters
Not a Reiki Book, but I have been working with the principles in this book with my Reiki Mentoring students. Everyone “gets it” and once the chimp is managed then meditation for one is much easier. However, there are many case studies and explanations that make this both an easily read work and helpful in making communication and relationships work better, help you feel more confident, be healthier in Body and Mind, and offers Reiki Practitioners an opportunity to become the person you would like to be.