A classic economic text. The five stars is for challenging my thinking. I got the most out of Book 3 on Consumption. Specifically, his thoughts on productive consumption (I would have used the word investment) vs unproductive consumption were different from my own and are forcing me to reconsider them. Naturally, I didn't agree with everything, but Say generally impressed me as a clear-thinker with strong opinions. I would recommend this only to people very interested in economics and specifically the evolution of economic thought.