Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent overview of how free markets came to dominate

The Commanding Heights by Yergin & Stanislaw does a great job of presenting how free markets came to dominate the post World War II world. They turn a somewhat dry subject(economics) into a fascinating tale. People rather than numbers drive this book and it makes the layman really care about economic policy. Even my high school students have enjoyed it.