The most useful part of this book - and the one offering the clearest exposition of the author's philosphy - is the 4th chapter entitled "Systems of the Body". This is the chapter that a reader with a specific complaint should turn to first. This includes sections on eleven bodily systems, including: the circulatory system; the lymphatic system; the respiratory system; ears, nose, throat and eyes; the reproductive system; and the digestive system.
Taking the digestive system to illustrate the author's approach, the whole section consists of 14 large pages. In the first two pages, the author explains with the help of illustrations the anatomy and function of the digestive system, and then gives general lifestyle advice on prevention of digestive disease. The next two pages are an introduction to the various kinds of herbs for the digestive system, among them bitters, hepatics, laxatives, emetics, demulcants, astringents and anti-spasmodics. The final 10-page subsection is titled "Patterns of Digestive Disease", in which Hoffmann offers his views on the nature of, and possible treatments for, problems as diverse as constipation, anorexia nervosa, mouth ulcers, duodenal ulcers, and gall-bladder inflammation. The herbs mentioned in this chapter can then be looked up in the preceding chapter, a traditional herbal which devotes half a page to each herb, mentioning the parts used; how and when to collect it; its chemical constituents; its actions; and preparation and dosage. I find half a page far too little, but combining this with the information in the rest of the book, the reader will usually find enough to suggest a possible remedy for common complaints - one that will usually require verification by a qualified practicioner.
The rest of the book includes chapters on "the holistic approach" and "practical herbalism". The latter explains how to gather herbs and make herbal preparations; the chemistry of herbs; the action of herbs; suggestions for a basic herbal medicine chest for the home; and a therapeutic index, which gives an alphabetical list of conditions with most of the potentially useful herbs.