Chinese Medical Qigong
An authoritative work.  Well documented and cross referenced.  Anyone involved with Medical Qigong or energy medicine should study it and have it as a reference work.  If you are new to Qigong it will be a bit overwhelming.  It is for those who are already attuned to this practice.  I recommend it highly for the serious student.
This is garbage one is way too short also don't work i would not recomend this s*** other thing is too tide to get in the doc part also takes to long to charge the device this is a waste of money!!!