"Out of the Crisis" by W. Edwards Deming. The author was one of a handful of people who helped the Japanese apply methods of statistical control to their manufacturing processes, which in turn helped them to become an economic superpower after their country's occupation by the Allies. In the book the author takes a deep look at the problems of management in the United States, and provides a list of reforms that would lead businesses "out of the crisis". I only recently learned of W. Edwards Deming, and I wish that I had known about him much earlier.