This document discusses several theories of leadership, including: 1. Trait theories which examine personality traits that may relate to leadership abilities but have limitations in generalizing across situations. 2. Behavioral theories proposed by Ohio State and University of Michigan studies which examine specific leadership behaviors but these also do not generalize across contexts. 3. Contingency theories like Fiedler's model which consider how a leader's style interacts with situational factors, and theories like path-goal which say a leader's style should change to fit the situation. 4. Other theories discussed include cognitive resource theory, leader-member exchange theory, and situational leadership theory.