12: The Elements of Great Managing Rodd Wagner, James K. Harter, Ph.D. Gallup Press, 2006
The CEO Chief Engagement Officer John Smythe Gower Pub Co, 2007
Employee Engagement Brad Federman Jossey-Bass, 2009
Employee Engagement William H. Macey, Benjamin Schneider, Karen M. Brabera, Scott A. Young Wiley-Blackwell, 2009
Engaged Leadership Clint Swindall Wiley, 2007
The Essential Guide to Employee Engagement Sarah Cook Kogan Page, 2008
Human Sigma John H. Fleming, Jim Asplund Gallup Press, 2007