Ken Blanchard's The One Minute Manager is a business classic that has helped millions of managers and employees around the world improve their communication, productivity, and leadership skills. In this book, Blanchard outlines his three secrets to successful management: One Minute Goals,
From Wikipedia
Kenneth Hartley Blanchard is an American author, business consultant and motivational speaker who has written more than 70 books, most of which were co-authored. His most successful book, The One Minute Manager, has sold more than 15 million copies and been translated into many languages. He is the co-creator with Dr. Paul Hersey of Situational Leadership, a theory they developed while working on the textbook Management of Organizational Behavior.