Re: Best books for Ki developing, meditation, breathing and exercises?
Ki: A Practical Guide for Westerners (Reed)
Ki and the Way of the Martial Arts (Tokitsu)
Ki in Aikido (Shifflett)
The Body, Self-Cultivation and Ki Energy (Yuasa, Nagatomo, Hull)
Aura, Ki and Healing (Sugiyama)
The Book of Ki: Practical Guide to the Healing Principles of Life Energy (Fromm)
Aikido with Ki (Maruyama)
Ki Power (Blum)
That will get you started. By the time you finish that list, you will probably be ready to write your own book...