Leadership is a relationship between those who aspire to lead and those who choose to follow (Kouzes & Posner, 2002).
Leadership is a process whereby an individual influences a group of individuals to achieve a common goal (Northouse, 2004)
Leadership is the influencing process of Leaders and followers to achieve organizational objectives through changes (Lussier & Achua, 2004).
Leadership is the behavior of an individual…directing the activities of a group toward a shared goal (Hemphill & Coons, 1967).
Leadership is the influential increment over and above mechanical compliance with the routine directives of the organization (D. Katz & Kahn, 1978).
Leadership is the process of influencing the activities of an organized group toward goal achievement (Rauch & Behling, 1984).
Leadership is a process of giving (meaningful direction) to collect effort and causing willing effort to be expanded to achieve purpose (Jacobs & Jacques, 1990).
Leadership is the ability to step outside the culture…to start evolutionary change processes that are more adaptive (E.H. Schein, 1992).
Leadership is the process of making sense of what people are doing together so that people will understand and be committed (Drath & Paulus, 1994).
Leadership is the ability of an individual to influence , motivate, and enable others to contribute toward the effectiveness and success of the organization (House et al., 1999)
Leadership is the ability of developing and communicating a vision to a group of people that will make that vision true (Kenneth Valenzuela, 2007)