Oprah Winfrey and Arthur C. Brooks are out with a new book on happiness

Oprah Winfrey and Arthur C. Brooks are out with a new book, "Build the Life You Want: The Art and Science of Getting Happier." 

The book offers a step-by-step approach to happiness, grounded in science and enriched with real-life stories, including those of Oprah and Brooks themselves.

Brooks, a Harvard professor renowned for his expertise in the science of happiness, said he wasn't always a naturally happy person and has had moments of gloom and anxiety, even prompting his wife to suggest he follow some of his own research.