Shawn Achor (born 1977 or 1978) is an American educator, author, and speaker known for his advocacy of positive psychology. He is best known for his research reversing the formula of success leading to happiness—his research shows that happiness in fact leads to success. Achor spent 12 years studying what makes people happy at Harvard University. He later authored The Happiness Advantage and founded the Institute of Positive Research and GoodThinkInc. His TEDx talk "The Happy Secret to Better Work" is one of the 20-most viewed TED talks.