Absolutely invaluable when planning a new site, working on an existing site, or explaining things to non-technical employees. This book is filled with practical, succinct and easily understandable advice for all aspects of networking. It is sufficiently vendor neutral to apply to practically any environment. It is also specific enough to be useful in the field. Justifications are readily available for all the tips and pointers given in this book, along with real world examples. Overall this is an incredible value, an excellent reference, and highly recommended. It pulls together information from countless sources and topics into one streamlined resource. If only all networks were as organized and efficient as this book.