The document discusses several models of leadership including: - McGregor's Theory X and Theory Y about assumptions of human nature - Blake and Mouton's grid about leadership styles with concern for people and production - Tannenbaum and Warren's continuum of leadership behavior based on forces in the manager, subordinate, and situation - Fiedler's contingency model about leadership effectiveness based on leader-member relations, task structure, and position power - Path-goal theory about four primary leadership styles: directive, supportive, achievement-oriented, and participative