Warren G. Bennis (1925-2014) was an internationally recognized scholar of organizational behavior, having written or edited many books and articles on leadership, motivation, and change in large-scale, complex organizations. His works include Still Surprised: A Memoir of a Life in Leadership. Emily Durante has been narrating audiobooks for over ten years and is also an AudioFile Earphones Award-winning audiobook director. She has been acting since the age of seven and has performed in a number of stage productions at the professional, collegiate, and regional levels. Martin E. P. Seligman, PhD, the Robert A. Fox professor of psychology at the University of Pennsylvania, works on positive psychology, learned helplessness, depression, ethnopolitical conflict, and optimism. His work has been supported by the National Institute of Mental Health, the National Science Foundation, the Guggenheim Foundation, the Mellon Foundation, and the MacArthur Foundation. He is the director of the Positive Psychology Network and scientific director of Foresight, Inc., a testing company that predicts success in various walks of life. He was the director of the Clinical Training Program of the University of Pennsylvania for fourteen years and was named a distinguished practitioner by the National Academies of Practice. In 1995, he received the Pennsylvania Psychological Association's award for Distinguished Contributions to Science and Practice. Tony Schwartz is the president and CEO of The Energy Project, which helps individuals and organizations perform at their best. Tony's book The Power of Full Engagement, coauthored with Jim Loehr, was a Wall Street Journal and New York Times bestseller and has been translated into twenty-eight languages. Tony's article Manage Energy, Not Time: The Science of Stamina, coauthored with Catherine McCarthy, was published in the October 2007 Harvard Business Review. Tony coauthored the #1 worldwide bestseller The Art of the Deal with Donald Trump and also wrote What Really Matters: Searching for Wisdom in America. Harvard Business Review is the leading destination for smart management thinking. Through its flagship magazine, eleven internationally licensed editions, books from Harvard Business Review Press, and digital content and tools published on HBR.org, Harvard Business Review provides professionals around the world with rigorous insights and best practices to lead themselves and their organizations more effectively and to make a positive impact. Robert J. Thomas is the author of Crucibles of Leadership and coauthor, with Warren G. Bennis, of Geeks and Geezers: How Era, Values, and Defining Moments Shape Leaders. Tim Paige is an audiobook narrator with a passion for rom coms, superheroes, and telling stories that provide an escape from the world (or a new lens with which to view it). A former full-time touring musician, Tim has played on some of the biggest stages in the world. He is the voice of The More You Know on NBC, and has provided voice-over for many national commercials, promos, trailers, and video games. When he's not narrating audiobooks or voicing fun projects, you'll most often find him playing pretend with his two sons, shouting at the television during Syracuse Orange basketball and football games, or cooking up tasty vegan treats.