Leadership According to (Timpe 2002) leadership is the ability to influence people to be willing to follow someone's guidance or obey someone's decisions and the process of influencing organizational members to use their energy voluntarily and on time to facilitate the achievement of organizational goals. Sham (2007) in (Triwahyuni, Thamrin, and Widodo 2014) defined leadership in organizations as an overall measure to influence and encourage people in a joint effort to achieve organizational goals. When applied to school, the principal is the leader of a school organization whose position is legitimate as a school manager, the position bearer plays the role of professionalism leading the school to take action to influence and strengthen teachers and staff in a joint effort to achieve educational goals.