I'm a Masters swimmer and have been out of the water for some time. I bought this book to "fast track" myself back into fitness. I think it is fair to say that the book contains _no_ new exercises; however what the book does, and does *really well*, is show you why an exercise is good for certain parts of your swim stroke.
Having read it end-to-end in a couple of hours I produced a couple of strength training regimes to work through. I would recommend this book to pretty much any swimmer who wants to do something to complement their pool training.