Well designed, easy to read and use. This gem of a book is an excellent resource for those user looking for shortcuts, easy to learn features of this awesome operating system. I bought this book a couple of months before the release of Snow Leopard. In hindsight, since many MAC OS X users will inevitably upgrade to Snow Leopard, I suggest holding off on this book and wait for the release of MAX OS X Snow Leopard instead. You can't go wrong with the publishers of this series of instructional books. They conceptualize the needs of the reader and address many questions that are often left to the Genius Bar at Apple.