The excellent book is full of dense idea. I've read his earlier book on Strategy, but this book is as equally educational. My biggest takeaway was his take on national competitions. Many concepts get thrown around by news and economists, from the exchange rate, interest rates, government deficit, cheap labor supply, etc. He dismisses those macroeconomic effects. Instead, he focuses on productivity and the supplier side in microeconomics. Industry cluster that happens not always at the national level but geographical level driven by local competition takes a decisive role in the overall nation's competitiveness. That idea is brilliant. I also like his take on the necessity we need to look at it from a long term approach of 10-20 years to develop a healthy industry.
There's one thing I have to add though. The book covering the time of early 2000s, his take on Internet seems weak. He promoted AOL model of charging information access which was completely wrong by free information movement of Google. I think he missed out on the population size of the Internet, which enabled the advertising model. I don't want to downgrade the author's ability at all, but it just shows how difficult to assess the impact of surging technology.