This document discusses various leadership theories including: - Great Man Theories which propose that leaders are born, not made. - Trait Theories which examine physical and mental traits of leaders. - Behavioral Theories which analyze what leaders do such as directing, supporting, and coaching. - Contingency Theories which propose there is no single best leadership style and that the effectiveness depends on the situation, including Fiedler's Contingency Theory and the Ohio State, Michigan, and Hersey-Blanchard theories. - Transformational and Charismatic theories of modern leadership.