Do you know what makes you happy? Daniel Gilbert would bet that you think you do, but you are most likely wrong. In his witty and engaging new book, Harvard professor Gilbert reveals his take on how our minds work, and how the limitations of our imaginations may be getting in the way of our ability to know what happiness is. Sound quirky and interesting? It is! But just to be sure, we asked bestselling author (and master of the quirky and interesting) Malcolm Gladwell to read Stumbling on Happiness, and give us his take.