As someone who works in alternative health, I can say that my company's staff finds this book indispensible. Our office copy is continually being passed from hand to hand as a resource and reference. It IS expensive, but for the value we get out of it, I'd pay the money again--in fact I'm going to, because I originally came to the page to order a second copy for the office and felt I needed to respond to the one poor review that was posted. It's not representative of the product--it's representative of the... more info