When I first bought this book a few years ago I tried it but after a few days lost interest. Later that year I found it again between other books I kept in a box and decided to try it again. And yes, it works!It is not a long book, and it will take you maybe one or two days to read it. That being said, I think that it is a great source for those (like me) that like a quick dose of yoga, whether because of time or whatever reason.The exercises within are great, and you can do them wherever you want without the need for a mat or blanket.Ideal for traveling.