He describes the tool as follows:
"In the hands of economists, "rational choice theory" produces an X-ray image of human life. Like any X-ray, rational choice theory does not show everything. Nor is the picture necessarily very pretty. But it shows you something important, and something you could not see before" --page xiiiMy favorite is chapter six, The Danger of Rational Racism, that tells how you, out of your perfectly rational thought, can become a racist even before you realize it --assuming, ex ante, you are not a racist by heart and/or there is no such thing as racist culture or psyche.
Nevertheless, overall, the book is fun, very well written, and the reading enjoyable. Highly recommended for both economists and non economists, no Econ 101 prerequisite required.