Instruct: Classify an Amazon review as either positive or negative.
Query: Inofrmative and Accurate.

I am a Computer Science Engineer, This book is an excellent entry level source for data networks. It is easy to read and follow. The writer implicitly knows the subject very well and is able to convey the knowledge in a way it is not difficult for non-technical readers. It provides useful in formation for technical readers as well. I will recommend this book to anyone who is interested in knowing about data networks from scratch.