Jim Harter, Ph.D., is Chief Scientist, Workplace for Gallup. He has led more than 1,000 studies of workplace effectiveness, including the largest ongoing meta-analysis of human potential and business unit performance. The bestselling author of 12: The Elements of Great Managing, Wellbeing: The Five Essential Elements and the #1 Wall Street Journal bestseller It’s the Manager, Harter has also published articles in many prominent business and academic journals.