I had been interested in starting Yoga and found this book at my library. The fully-colored photographs convinced me to borrow it. As a beginner, I found this book VERY helpful. Aside from the photos, each pose is described step-by-step in detail, so it's very easy to follow. Also, there's a paragraph describing the benefits received from that particular pose (i.e. - what body part you're toning, stress-relieving purposes, etc.). At the end of each chapter is a list and of all the poses from that chapter's routine for quick reference.
I love how this book is divided. It starts with 2 different 10-minute sessions (beginning and advanced). The next few chapters are divided into what section of your body you want to tone. So if you feel like focusing more on your thighs and butt one day, you can just turn to that chapter and follow that routine. There's also a chapter on abs and another on your upper body.
This book is not only for introduction purposes. There is also a 40-minute routine for advanced Yoga students, with a bunch of headstands and shoulderstands I hope to be able to do one day! I defintely plan on buying this book sometime in the future.