I wanted to dive into virtualization very quickly. I immediately purchased this book based on other reviews, and wasn't disappointed. There are certain weaknesses though, the author's primary language is not english, which in some cases works out well (using simple language to describe technical scenerios) and other times its just distracting. The content is very good, but already somewhat outdated, with VMWare now having released Converter 3 as a free tool for single installs. I would have liked a more indepth explanation with scenerios (The why nat, bridge and host-only are used) of VMWare Server network handling, as this is one of the most important aspects of a proper production implementation. I recommend this book to anyone that needs a better understanding of what Virtualization is, and since VMWare is the market leader, this is where you should start.