Hetherington (philosophy, U. of New South Wales) guides readers through a five-day personal meditation that would make a great philosophy course (Hetherington foresees that possibility, of course, and makes suggestions in the last chapter). He leads us from exercises and thoughts about our physical nature to others about our mental nature, ruminations about what self-knowledge would be, the methods by which we can gain self-knowledge, and ways we can confront doubts about whether true self-knowledge is possible. The result is remarkably accessible, witty, and charming. Annotation ©2008 Book News, Inc., Portland, OR (booknews.com)