The main book of this group is the 4th edition, titled: "Exchanges for All Occasions: Your Guide to Choosing Healthy Foods Anytime Anywhere-4th Edition." C1997, ISBN 1885115350. This book is very, very good, and also very, very rare. When it can be found, it goes for about $40.00. It is a terrific book and its exchange lists include "carb-counting," WHICH THE PREVIOUS EDITIONS DO NOT, along with good information about meal planning, carb-counting your own recipes, and dining out. It has a salmon cover and is a 5.5" x 8.5" trade paperback. If it can be found, it is very expensive. I have one and probably wouldn't part with it for any amount of money (within reason).
This great little pocket guide was published in 2000. It has the identical salmon-colored cover as the trade paperback 4th edition, but it is a tiny book and is titled "Exchanges for All Occasions: Pocket Guide to Healthy Food Choices Anytime, Anywhere." This little guide, C2000, ISBN 1885115563, is the book that most of the Amazon reviews for all editions are referring to. Notice the reviews say it is a very handy size. It has the same exchange lists, including carb counting, as the 1997 bigger book, but none of the other information. It is a very handy pocket book with good exchange lists for everything, including ethnic restaurant foods.
All of the different Amazon sale pages for the different editions contain an assortment of different books, and they mostly show the cover of the 4th edition and the good reviews of the pocket edition.
Because the 1997 book is so valuable and so good, you often will find the 3 older editions (1983-1993)listed under the 4th edition's ISBN for a high price, or even the Pocket Guide's ISBN for a moderately high price. The earlier 3 editions of "Exchanges for All Occasions," which were published in the 1980's, do not have carb-counting and do not have the salmon-colored cover of the 4th edition and the pocket edition. These old editions are readily available on Amazon for about $2.50, and sometimes masquarade on the product page of the 4th edition at a high price, or the product page of the pocket edition at a medium price. Buyer beware.