‘Light on the origins of Reiki’. A Handbook for Practising the Original Reiki of Usui and Hayashi.By Tadao Yamaguchi, Foreword by Frank Arjava Petter
Highly recommended reading for an overview of Reiki practice in its orginal Japanese form.
The Hayashi Reiki Manual’. Traditional Japanese Healing Techniques from the Founder of the Western Reiki System. Frank Arjava Petter * Tadao Yamaguchi * Chujiro Hayashi
The Original Reiki Handbook of Dr. Mikao Usui’. Dr. Mikao Usui and Frank Arjava Petter.