Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: One of the better books in the "... for Dummies" series.

Unix is the least user-friendly platform, in my opinion, soany manual that's reasonably coherent -- as Unix itselfisn't -- is a godsend. I'm not a big fan of the "Dummies" series though I confess to ownership of a 1/2-dozen or more. I'd prefer a more straightforward, less chatty approach. Stll, "Dummies" as a rule are hard to beat when it comes to getting good information in a relatively pleasant and painless fashion. This book certainly fits that bill.