Dr. Paul Hersey is an internationally-known behavioral scientist and highly-successful entrepreneur. He is best known for developing Situational Leadership® with Ken Blanchard, which is enunciated in their work "Management of Organization Behavior", now in its ninth edition. Professor Hersey is recognized as one of the world’s outstanding authorities on training and development in leadership, management, and selling. Wikipedia
The definitive Wikipedia entry for Paul Hersey. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Paul_Hersey