This chapter discusses various theories of leadership. It covers trait theories, which examine personal characteristics of leaders, and behavioral theories, which focus on leaders' behaviors and consideration of followers. Situational theories like Fiedler's contingency model and path-goal theory propose that leadership effectiveness depends on situational factors. Transformational leadership aims to inspire and intellectually stimulate followers. Servant leadership emphasizes service to others, while superleadership develops followers' self-management skills. The chapter also examines leader-member exchange theory and substitutes for leadership.