This video is a good introduction to a typical Chinese herbal pharmacy that you might find in any major American city's Chinatown.
I feel obligated to point out that the doctor made one glaring error. 党参 Dang Shen (the long wrinkled-looking root) is not a type of ginseng. Ginseng is part of the Panax family. Dang Shen is a type of codonopsis. They do have similar functions, but don't let anyone try and sell you Dang Shen as a type of ginseng.