Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A fine Linux reference!

Mr. Barkakati has done a great job with this book, but like all books concerning any operating system it is far from complete. Having said that I don't think that was Mr. Barkakati's intention. It's a good reference manual and should be one of many Linux books on your shelf if you're on the Linux road to peaceful bliss and contentment. :) Definitely worth the price I paid.