I've been interested in Doc Childre's HeartMath approach for several years now. "The HeartMath Solution" does an impressive job of tying the various techniques together and summarizing the underlying research. (The research, some of which has been published in peer-reviewed scientific journals, is one of the things that distinguishes this approach from many other popular discussions of stress management.) The book also presents some real-life stories of people whose stress goes far beyond that of daily deadlines and demands for attention: people who are coping with an alcoholic parent, for example, or trying to deal with the death of a spouse. (A footnote of interest to those who are already familiar with this approach: the instructions for "Cut-Thru," one of the more powerful HeartMath techniques, have been significantly revised since they were first put out in book form a couple of years ago; the new instructions are much improved.)
"The HeartMath Solution" is readable, credible, and helpful. I would recommend it to anyone looking for a way to take the edge off their daily stress quotient.