Ken Blanchard is the coauthor of The One Minute Manager® and fifty other books, including the New York Times business bestsellers Gung Ho! and Raving Fans. His books have combined sales of more than eighteen million copies in more than twenty-seven languages. He is the chief spiritual officer of The Ken Blanchard Companies, a full-service global management training and development company that he and his wife, Dr. Marjorie Blanchard, founded in 1979.
Patricia Zigarmi is vice-president for business development at The Ken Blanchard Companies. With her leadership, ongoing initiatives for SLII® training have been implemented with several major corporations, including American Express, Apple, Microsoft, SAP, TJX, and Wells Fargo.
Drea Zigarmi is the president of Zigarmi Associates, Inc., and the director of research and development for The Ken Blanchard Companies. He has co-developed several Blanchard training and development products, including its "Leader Behavior Analysis" instruments.