If I recall correctly, the book in its entirety can be purchased for only a few dollars, which may interest some.

As an aside: I am very wary of Goji Berry suppliers as a whole. It is clear that many distributors simply re-package their bought-in stock and sell it as their own. I have also noticed that sellers list their berries differently, yet the berries themselves appear to be of the same ilk (note that "Goji" Berries differ in size, appearance and quality depending on the region in which they grow, yet the "Tibetan," "Chinese" and "Himalayan" berries sold by rather large companies look and taste exactly the same). On my visit to a Chinese Herbalist, I was introduced to Gou Qi Zi which I noticed bore striking similarities to the Goji berry I was already familiar with; however, Gou Qi Zi (Chinese Wolfberry) is a little smaller than the Tibetan Goji and displays a subtler scent and flavour (in my opinion).

Personally, I feel the Goji has made a huge amount of money for all those "raw food" websites who sell products from afar at extortionate prices. Maca, Goji, now Cacao...what next, I wonder?