This book sets out, in the context of a story, an excellent system for running checks on one's own decisions. I recommend it highly to anyone who has ever wondered why they repeatedly have made bad decisions (in the sense of not reflecting their own true values and interests) in the past, or would like to make even better decisions in the future. Through two questions, each having three aspects, the decision maker can reflect on whether they are dealing with what is real or imagined, and whether they are being true to themselves. A very short, easy read, but extremely useful. Highly recommended for everyone, including young people.