Tom Rath is one of the most influential authors of the last decade. He studies the role of human behaviour in health, business, and economics. Rath writes and speaks on a range of topics, from well-being to organizational leadership. He has written several international bestsellers, including the New York Times bestseller How Full Is Your Bucket? In 2007, The Economist listed his book StrengthsFinder 2.0  as the top-selling business book worldwide. In total, Rath's books have sold more than 5 million copies, been translated in languages and made over 250 appearances on the Wall Street Journal bestseller list. Rath is a senior scientist and advisor to Gallup, where he previously spent 13 years leading the organization's work on employee engagement, strengths, and well-being. He has also served as vice chairman of the VHL cancer research organization.