Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Good overview of Multithreading, covering too many OS.

I thoughly enjoyed this book. The illistrations and examples matched much of my experiences and aided my thoughts. This would be an excellent book for a college senior or as an overview of the principles of multithreading in multiple OS's. For people that haven't dealt with OS's except Windows, this might tend to just confuse rather than enlighten. I thought the writing flowed well and I could read large sections without getting tired or bored.