This document discusses various leadership theories including trait, behavioral, contingency, and situational leadership theories. It defines leadership and differentiates between managers and leaders. Trait theories focus on identifying innate qualities of leaders. Behavioral theories examine specific leader behaviors. Contingency theories emphasize that a leader's effectiveness depends on how their style fits the context. Situational leadership theories propose that leaders should adapt their style to followers' readiness levels. The document also discusses the Ohio State leadership studies, Michigan studies, Fiedler's contingency model, Hersey and Blanchard's situational leadership model, and path-goal theory.