In the world of business, the perception of leadership has changed from its early days when it largely mirrored the militarymodel of leadership from the top down, with powerful individuals dominating large groups of less powerful people.Nowadays, leadership in business is far more knowledgedriven. The lowliest employee may end up effectively leading thedirection of a vast corporation through his or her innovative ideas. Anyone with critical knowledge can show leadership. Thisis known as thought-leadership. In other situations, leadership can be about taking a stand for what you believe in, and trying to convince people to think and act differently.