Charles W. McCoy is a judge and therefore necessarily a careful and methodical thinker, one would hope. The opening of this book takes you through a case from McCoy's court - a seemingly open and shut case of a promising career cut short by industrial carelessness and corner cutting. McCoy modestly shows how even a judge can be taken in by the superficial and how, in this case, careful and sceptical consideration of the facts enabled the correct outcome to be achieved. However, this was a close call - and McCoy's response to this incident, and many others in a distinghished legal career, has been to set down the basics of thinking issues through carefully. I found this an interesting read. Perhaps too much focus on optical illusions and what seemed like standard examples of critical thinking exercises - but interesting and challenging in its approach. If you are interested in sharpening your thinking skills - this is a recommended read.