DOUBLE VALUE PACK of Therapeutic Herb Manual by Ed Smith - 1 - Book - Description: NEW 2008 Version! Written by Ed Smith, the Therapeutic Herb Manual is a guide to the safe and effective use of liquid herbal extracts. Includes information on over 120 single herb extracts as well as 58 herbal compounds. Details are given on actions, therapeutic uses, appropriate dose, adjunct therapies, and cautions.