Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: An illuminating framework for understanding competition

I'm an engineer by training. The authors conveyed their marketing concepts in easy-to-understand terms thru analogy with warfare. I tried to apply their framework to Intel vs. AMD and Amazon.com vs. E-bay. I believe I have acquired some understanding of why the marketing folks at Intel and Amazon.com are doing what they are doing. Enough knowledge to have made me dangerous :-) Would have been nice if authors had included a few chapters on cases where the analogy of marketing with warfare breaks down.