This guide book should not only be read by people with knee problems, but also by those wanting to develop the bodily awareness that comes from an understanding of basic yoga asanas. While I don't suffer from knee problems, I was drawn to Sandy Blaine's concise descriptions and the attention to detail for the 17 poses presented. This is particularly true for her advice on how to internally support our knees without locking them.
This book is very useful for those of us with knee problems. Some of the poses presented may be familiar from other sources, but the instructions for doing them are very detailed and supplement information available elsewhere (in the extended triangle pose, for instance). The focus on how your knees specifically are feeling (and should be feeling) in each pose is great. I also like the model this book uses; she looks like a regular person who has become flexible through consistent practice, not like some Olympic gymnast that you could never hope your efforts to match. I've been doing about 7 of these poses a day for about a week, and my knee pain has already lessened. Yoga is the best! This book is a bargain.