An excellent product for those wanting more information in Chi Qong. I have been doing the Lee Holden, Evercise to Heal Chi Qong dvd's for about a year and decided I needed to know more about Chi Qong, the history and philosophy. Ken Cohen does just that and more. A series of 6 tapes which are very inclusive and will take quite some time to go through, so I got my money's worth.
My only negative complaint is that these are only to be found in tape format. I would have liked them as CD's, but a minor inconvience for the information provided.
Sorry about my spelling of Chi Qong, there's quite a few accepted ways.