Tom Rath is an American author, researcher, and speaker whose books have sold more than 5 million copies and have been translated into sixteen languages. He is best known for his studies on strengths based leadership and wellbeing and synthesizing research findings in a series of bestselling books. He is a senior scientist and advisor to Gallup, Inc. where he spent 13 years leading Gallup's research and consulting on employee engagement, strengths, and wellbeing.