Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent book on concepts and principles of networking.

Many networking books are little more than condensations of product literature and standard documents. Radia's book goes into the concepts and principles behind the technology, and in some cases, the history. This information will be very useful to students learning the technology, networking managers trying to improve their networks and product developers hoping to avoid past mistakes. If network architects and standards developers absorb this book perhaps the next generation of networking will be less complex and more effective. The book includes historical anecdotes and controversial recommendations. These make it entertaining as well as informative.