Why do our friends have more friends than we do? How do you book the best available seats on a plane? And if jogging for ten minutes adds eight minutes to our life expectancy, should we still go jogging?

When dealing with the real world, it's often not enough to act logically - you must be able to put yourself in the shoes of a clever competitor and think about how they might respond. Whether you are dealing with events on the scale of the Cuban Missile Crisis or letting go of anger, game theory holds the key to better outcomes and lasting happiness.

Full of fascinating thought experiments and revealing stories, Reason to Be Happy is a paean to the power of rationality. If you want to have a good life and even make the world a better place, you can start by thinking clearly.