Unless you have taken a sabbatical for the last couple of years, virtualization buzz words have become commonly talked about topics in IT organizations including infrastructure and application development. In fact, even business contacts have started taking notice of virtualization and are frequently questioning the IT department on what initiatives are being taken on that aspect. This concise book puts all flavors of virtualization together neatly organized in to different chapters.
The first chapter gives an overview of the entire stack of virtualization - Access, Application, Processing, Network, and Storage along with the broader aspect of Security and Management across each layer. Chapter two explains Access virtualization with a nice flow of what it is, when is it the right choice, providers, and a few examples. This flow is maintained in the remaining chapters covering the other types of virtualization mentioned above.
Overall, I found this book to be very concise as a pocket guide covering virtualization broadly. Indeed, it is targetted at managers since it is at a high-level. If you are a techie looking for depth, you are better off looking elsewhere.