Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not very useful

Maybe I was a bit late in reading this but I wanted to read a lot about storage, networks, SANs, NAS', and other technologies. This book had a lot of pages that really didn't get you into the guts of what was going on or even give you a good idea how to do it yourself.If you buy this book be prepared to do tons of self study to fill in the gaps left by improperly introduced technologies.