Instruct: Classify Amazon reviews into positive or negative sentiment
Query: We use this book over any other.

I'm an MCSE and work as a Network Administrator for the Tropicana Hotel in Las Vegas, NV. We have two networks - one Ethernet and one Token Ring. This book has been invaluable as a reference for day to day use.Some of those who rate it low are probably not ready to tackle the more complex issues of NT. This definately is NOT a study guide, it's a professional reference book!Mark