Instruct: Classify Amazon reviews into positive or negative sentiment
Query: 4/5 stars and a thumbs up

I've read all the reviews posted here and thought I would join in too. What can I say about this book? Well it starts out a little dry but certainly picks up the beat after the internetworking tutorials. I particularly like the style the author used and the way each topic intertwined with more serious security technologies later on. Although I found some errors, the overall material was organized well and explained in great detail. A picture says a thousand words, and that's what I like most about the many examples (the author doesn't spare any expense with this book's illustrations). I consider myself well read when it comes to this topic, and this book opened the door to many new interesting methods. 4/5 stars and a thumbs up.