Harvard and Stanford trained scientist and positive psychologist Sonja Lyubomirsky offers a pragmatic, yet research-based guide on how to boost your happiness.

While genetics and life circumstances determine some of our moods and how we feel about life, 40 percent of our happiness is up to us! The author gives a solid background and quickly moves into applications and worksheets that you can use to get started on being in charge of your own happiness. What are you waiting for?