The editor (and creator of EMDR), Shapiro, has done a masterful job in weaving together material from several psychological traditions, and the principle of alternating bilateral stimuli--such as eye movements--to form an effective approach toward resolving historical patterns, such as phobias, complexes and PTSD artifacts. This psychologist has really done her homework, and I have found her exposition of the approach to be most satifying. In this book, representatives of different therapeutic traditions explain how they have employed EMDR with their patients. There is also a fair amount of speculation on why it works. This is an important book, and there is extensive citation of sources. Exactly how EMDR works, neurologically, is still something of a mystery.
The key appears to be that bilateral work--as in Applied Kinesiology's "cross-patterning" and "cross-crawling" tends to recruit and integrate the two cerebral hemispheres, so as to expedite the higher brain's accessing of lower brain centers in the limbic system, so as to allow reprocessing of traumatic material which has been just setting there, like an undigested meal in the stomach, poisoning the client's life. I will add that I have found psych. "tapping" to dovetail nicely with EMDR technique. These tools work so well, that their operation may seem nothing short of miraculous to many. At least for some psych. problems, they work more rapidly than ordinary "talking therapy," and much more rapidly and effectively than psychoanalysis.
A criticism is that--as far as I can tell--no one in this book credits the work done by Dr. Jung. The Jungian complex is essentially the same as the PTSD phenomenon, which is discussed extensively throughout this book. And, no credit is allowed L.R. Hubbard. The scientology engram is also essentially identical to the PTSD phenomenon, and much good work has been done by those who dub themselves scientologists, rather than psychologists. There are elements of Dianetics and Scientology which are very similar what one finds in EMDR.
Still, EMDR as a technique is an important force in psychology today, and this book is a satisfying and fairly comprehensive treatment of the subject.