The book titled "KISS: Server Virtualization" is a comprehensive guide to understanding the complex world of server virtualization. The book is aimed at system administrators and IT professionals who want to gain a solid understanding of server virtualization, its components, benefits, and challenges.

The book begins by defining server virtualization and discussing its benefits. It then delves into the history of server virtualization and the different components that make up a virtualized server environment. It explains the different types of hypervisors and the ways to virtualize components such as CPU, storage, and network.

One of the strengths of this book is its coverage of the challenges that come with CPU virtualization, including the protection ring problem and how it has been addressed. It also includes a detailed section on the virtualization stack using Qemu, KVM, libvirt, and virt tools. The book provides step-by-step guidance on how to create, customize, and manage virtual machines (VMs) using these tools.

The book emphasizes the importance of considering the various aspects of VM deployment, including network and storage management. It also discusses the default settings for libvirt clients and the steps involved in creating a VM. The book concludes by summarizing the key points covered in each chapter and highlighting the benefits of server virtualization.

Overall, "KISS: Server Virtualization" is an informative and practical guide that covers all aspects of server virtualization. Its clear language, practical examples, and step-by-step instructions make it an excellent resource for anyone looking to implement a virtualized server environment.