Marcus Buckingham’s books have sold more than four million copies. His training and development firm, TMBC (TMBC.com), helps managers and organizations access the untapped potential of their people’s strengths. Prior to launching TMBC, he spent nearly two decades at the Gallup Organization. He has been profiled in the Wall Street Journal, the New York Times, Fortune, and Fast Company and has worked with companies such as Facebook, Kohl’s, Hilton, Microsoft, Chick-fil-A, and The Walt Disney Company.