Leadership theories aim to explain how leaders influence followers to achieve goals. Trait theories propose that leaders possess unique personality traits. Behavior theories examine how leaders behave, such as consideration for followers. Contingency theories stress that leadership style depends on situational factors. Effective leaders inspire followers, motivate them through vision and passion, and adapt their style to the maturity of followers and the demands of the situation. Trust is key to leadership, developed through integrity, benevolence, and competence. While theories provide insights, cultural context is also important for understanding leadership around the world.