These are books I would recommend to the novice and veterans alike :-) The spirit of the writing is wonderful, inclusive and patient. The subject matter and depth serves only to inspire, share knowledge and edify.
They are invaluable gems in my personal library.
The Spirit of Reikiby Walter Lubeck, Frank Arjava Petter & William Lee Rand
The Spirit of Reiki ISBN 9780914955672
The Complete Handbook of the Reiki System
Reiki Best Practices--by Walter Lubeck and Frank Arjava Petter
Reiki Best Practices ISBN 9780914955740
Wonder Tools of Healing for the First, Second and Third Degree Reiki
And the final book I will share with you
Esoteric Anatomy: The Body as Consciousness