We all want to be the rational parent, the rational consumer, and the rational voter. So why is it that so few of us can readily define what it means to think rationally? In this timely and inspiring book, Ivan Phillips argues that irrationality is rampant because we have never taught the key principles of rational thinking in schools. In concise and accessible writing, Textbook Rationality explains Ivan Phillips has a doctorate in theoretical physics from Northwestern University and is a frequent speaker on the topic of rational thinking.