This document discusses various theories and models of leadership. It covers trait theories that seek to identify personal characteristics of effective leaders. Behavioral theories examine types of leader behaviors and consider how styles may vary across cultures. Contingency models propose that effective leadership depends on both leader characteristics and situational factors. Specific models covered include Fiedler's contingency model, House's path-goal model, and transformational leadership. The document also discusses substitutes for leadership and the role of gender in leadership.