The Happiness Project, Tenth Anniversary Edition: Or, Why I Spent a Year Trying to Sing in the Morning, Clean My Closets, Fight Right, Read Aristotle,

Gretchen Rubin had an epiphany one rainy afternoon in the unlikeliest of places: a city bus. "The days are long, but the years are short," she realized. "Time is passing, and I'm not focusing enough on the things that really matter." In that moment, she decided to dedicate a year to her happiness project.

In this lively, compelling account--now updated with new material--Rubin chronicles her adventures during the year she spent test-driving the wisdom of the ages, current scientific research, and lessons from popular culture about how to be happier.

This updated edition includes:

- An extensive new interview with the author

- A guide to the dozens of free resources for readers

- The Happiness Project Manifesto

- An excerpt from Gretchen Rubin's bestselling book The Four Tendencies