How do great managers inspire top performance in employees? How do they generate enthusiasm, unite disparate personalities to focus on a common mission, and drive teams to achieve ever-higher goals?

More than a decade ago, Gallup combed through its database of more than 1 million employee and manager interviews to identify the elements most important in sustaining workplace excellence. These elements were revealed in the 1999 bestseller First, Break All the Rules.

12: The Elements of Great Managing is that book's long-awaited sequel. It follows great managers as they harness employee engagement to turn around a failing call center, save a struggling hotel, improve patient care in a hospital, maintain production through power outages, and successfully face a host of other challenges in settings around the world.

Gallup's study now includes 10 million employee and manager interviews spanning 114 countries and conducted in 41 languages. 12 weaves the latest Gallup insights with recent discoveries in the fields of neuroscience, game theory, psychology, sociology, and economics.

Written for managers and employees of companies large and small, 12 explains what every company needs to know about creating and sustaining employee engagement.

Jim Harter, Ph.D., is chief scientist of Gallup's international workplace management and wellbeing practices. He is coauthor of the New York Times bestseller 12: The Elements of Great Managing, which is based on the largest worldwide study of employee engagement. Harter's latest book, the New York Times and Wall Street Journal bestseller, Wellbeing: The Five Essential Elements, is based on a global study of what differentiates people who are thriving from those who are not. His research has been reported on in bestselling management books and in publications such as The Wall Street Journal, The New York Times, and USA TODAY, and the Harvard Business Review.