I have another book by Alan Simpson the XP bible and it has helped me out numerous times so it was the first book I purchased when I was forced to switch to Vista. I think he writes in a clear easy to understand manner and everything is categorized in chapters and the index, for quick location.I don't find this a book one would read cover to cover but as a reference its indispensible. I find more answers through this than from any help program or asking others. The only reason I would not give it a five is because of its size, its a super thick full of information book but its cumbersome to keep on your desk or on your lap it wont stay open it has so many pages! Not really a complaint but I think perhaps a wire ring or coil binding might make it easier to deal with due to its size.