Ken Blanchard, PhD, is one of the most influential leadership experts in the world. He has co-authored 60 books, including Raving Fans and Gung Ho! (with Sheldon Bowles). His groundbreaking works have been translated into over 40 languages and their combined sales total more than 21 million copies. In 2005 he was inducted into Amazon's Hall of Fame as one of the top 25 bestselling authors of all time. The recipient of numerous leadership awards and honors, he is cofounder with his wife, Margie, of The Ken Blanchard Companies(R), a leading international training and consulting firm. Cynthia Olmstead founded TrustWorks Group in 1987 and served as its president until it was bought by The Blanchard Companies in 2010. A group development expert, she recognized that the core of many problems is the lack of trust. Martha Lawrence is a former editor at Simon & Schuster and Harcourt. She is an executive editor at The Ken Blanchard Companies.