Think you know what makes you happy? This absolutely fantastic book that will shatter your most deeply held convictions about how your own mind works. --Steven D. Levitt, author of Freakonomics A psychological detective story about one of the great mysteries of our lives . . . You ought to read it. Trust me. --Malcolm Gladwell, author of Blink A fascinating new book that explores our sometimes misguided attempts to find happiness. --Time A witty, insightful and superbly entertaining trek through the foibles of human imagination. --New Scientist Gilbert's book has no subtitle, allowing you to invent your own. I'd call it 'The Only Truly Useful Book on Psychology I've Ever Read.' --James Pressley, Bloomberg News