For those interested in reading about Tai Chi the following list maybe helpful.
Books on the Spirit of Tai Chi
Laoshi: Tai Chi, Teachers, and Pursuit of Principle by Jan
Book Price: £9.41, Kindle version £4.26
Wolfe Lowenthal - "There Are No Secrets."
Wolfe Lowenthal - "Gateway To The Miraculous"
Books on the Cheng Man-ching Form
Cheng Man-ching & Robert Smith - "Tai Chi - The Supreme Ultimate for Exercise for Health, Sport and Self-Defence"
Herman Kauz - "The Tai Chi Handbook"
(Any form book by Cheng Man-ching would do)
Books on the Martial Arts
Robert Smith - "Chinese Boxing - Masters And Methods"
Robert Smith - "Martial Musings"
Books on Taoism
Alan Watts - "Tao - The Watercourse Way"