Source: Happier: Learn the Secrets to Daily Joy and Lasting Fulfillment
Tal Ben-Shahar born 1970, is an American and Israeli teacher, and writer in the areas of positive psychology and leadership. As a lecturer at Harvard University, Ben-Shahar created the most popular course in Harvard's history. He has subsequently written several best-selling books and in 2011 co-founded Potentialife with Angus Ridgway, a company that provides leadership programs based on the science of behavioral change to organisations, schools and sports organisations globally.
Wikipedia
Source: Happier: Learn the Secrets to Daily Joy and Lasting Fulfillment