Tom Rath is one of the most influential authors of the last decade. He studies the role of human behavior 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 #1 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 16 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.