This document discusses concepts of leadership. It defines leadership as a social influence process where a person enlists the aid of others to accomplish a common task. A leader has responsibility for and is willing to sacrifice for others. Leadership has nothing to do with rank or title. Effective leaders display traits like charisma, vision, courage and empathy. The best leaders are also good followers, and the best followers can also demonstrate leadership qualities. Building trust between leaders and followers is important through vulnerability, rewarding risk-taking, and open communication.