The How of Happiness by Sonja Lyubomirsky
Sonja Lyubomirsky is a research Psychologist at the University of California, and her book gives us a deeper look into what happiness is, and is not. She gives many detailed tips on how to achieve happiness in your life, and what exactly that means to you. She believes that we can become happier in a number of different ways, but focuses on how we have the power is within our control to change our scope on the happiness spectrum.
Have you read it?