Therapeutic Herb Manual Author:Ed Smith A Guide to the Safe and Effective Use of Liquid Herbal Extracts: The purpose of this book is to serve as a ready reference on the safe and effective use of liquid herbal extracts, and is by no means a definitive work on the herbs included. — Ed Smith, popularly known as "Herbal Ed," has been working as a medical herbalist for 20 years and is the ... more »founder an co-owner of Herb Pharm, an organic herb farm and herbal extract company in Williams, Oregon.« less