Acupuncture patients who want the nitty-gritty of such needling techniques as depth, placement, and needle type should read The Art of Acupuncture Techniques. It's unique historical perspective preserves theoretical concepts that haven't been taught in China since the Cultural Revolution. If you really want to know what's going on during treatment, whether you're seeking relief from a skin condition, angina, or infertility, it's right on target.