Marcus Buckingham's bestselling books have sold more than four million copies. The world's foremost thought leader on strengths and performance, Marcus relentlessly seeks the fundamental truths that help people unleash their greatest potential. He began his career as a researcher at Gallup, spending two decades studying excellence in leaders and teams. In 2006, he launched the Marcus Buckingham Company, which delivers education, coaching, and HR technology to some of the world's most prestigious firms. Marcus has been profiled in Harvard Business Review, Wall Street Journal, New York Times, Fortune, and Fast Company and has worked with companies such as Facebook, Cisco, Deloitte, Hilton, Lululemon, and The Walt Disney Company.