This book is a very well-organized and well-thought-out guide to the wide spectrum of yoga retreats and workshops available, both in the U.S. and internationally. The introduction includes brief but clear descriptions of the various styles of yoga offered by these centers, enabling you to choose a program that best suits your training and preferences. Each center is profiled in enough depth to give you a sense of its atmosphere as well as the physical particulars (schedule, facilities, meals, etc.) -- some people are looking for a retreat-type environment, while others prefer yoga classes in a livelier resort setting, and this book helps you to avoid making an expensive mistake. The photos are tantalizing, and both the teachers' philosophies and past participants' reactions to each program are described. I hope the author updates the book frequently -- this type of information goes out of date quickly -- but, in my experience, it seemed very accurate (my teacher is active in the Iyengar Yoga community, so I'd already heard about some of these programs). Reading the book is like getting a head start on a yoga vacation, and your only problem will be choosing which of the many wonderful possibilities to sign up for!