I ordered this book, because it was the cheapest Windows Server 2008 book that was available before Server 2008 was released. It is a good introduction to Server 2008. I'd recommend this to MCSE's who want to refresh their skills, but I don't recommend it for 'Dummies'. This book is well written and has a lot of 'From the Experts' comments by members of the Server 2008 Longhorn development team. There are good comparisons between Server 2008, Server 2003 and 2000 Server too. One thing bad about this book is that it's written about the Beta 3 release of Server 2003, not the final version. When the final release comes out, I'll probably need other study materials to help pass the new certification exams. The final version should be released soon. If you are planning on studying for the certification exams, you might want to hold out for books specifically geared towards the 70-640, 642, 643, 646 or 647 exams. This book is still a good reference a very in depth introduction to Server 2008.