John C. Maxwell is perhaps the best known living Christian author in the field of leadership. He has written over fifty books, including three that have sold more than a million copies: The 21 Irrefutable Laws of Leadership, Developing the Leader Within You, and The 21 Indispensable Qualities of a Leader. To learn more, visit his website, read his blog, or follow him on twitter. Recently, he unveiled a graphic overview of his next book: The Five Levels of Leadership, Read More …