If you are at all interested in being any kind of herbalist, you will want to have on hand pertinent herbal information for those times when it becomes necessary to use them. Which herbal tea will you concoct when your husband has a cold? Which syrup will you use when your child has a fever? How will you deal with your beginning urinary tract infection? (Here’s what I use, by the way.) Chances are, all of these questions and more will come up in the course of everyday life, and having a materia medica will make tackling these issues straight on an easier task.