In The Happiness Advantage , author Shawn Achor flipped upside-down the notion that success causes happiness. Now that we know enjoyment leads to achievement, the only question is how to find that joy. In the last chapter of his first book, Achor identified that the largest indicator of happiness and success is social connections. Big Potential: How Transforming the Pursuit of Success Raises Our Achievement, Happiness, and Well-Being is Achor’s follow-up to that revolutionary finding and explores the idea further.