Do you want to be happy? Then you need to read this book.
The author examines happiness and why we seldom achieve it for long. He examines several failed solutions including Religion and Consumerism, then provides a workable solution: the Four Pillars of Happiness and the Key. Includes practical techniques for retaining happiness once you attain it.
The author's conclusions will not be accepted by everyone, but if you've tried everything else and remain open minded to new solutions his techniques will work for you.