Leadership has been described as the “process of social influence in which one person can enlist the aid and support of others in the accomplishment of a common task”. Definitions more inclusive of followers have also emerged. Alan Keith of Genentech states that, "Leadership is ultimately about creating a way for people to contribute to making something extraordinary happen." According to Ken "SKC" Ogbonnia, "effective leadership is the ability to successfully integrate and maximize available resources within the internal and external environment for the attainment of organizational or societal goals."
Leadership remains one of the most relevant aspects of the organizational context. However, defining leadership has been challenging and definitions can vary depending on the situation. According to Ann Marie E. McSwain, Assistant Professor at Lincoln University, “leadership is about capacity: the capacity of leaders to listen and observe, to use their expertise as a starting point to encourage dialogue between all levels of decision-making, to establish processes and transparency in decision-making, to articulate their own values and visions clearly but not impose them. Leadership is about setting and not just reacting to agendas, identifying problems, and initiating change that makes for substantive improvement rather than managing change.”
The following sections discuss several important aspects of leadership including a description of what leadership is and a description of several popular theories and styles of leadership. This article also discusses topics such as the role of emotions and vision, as well as leadership effectiveness and performance, leadership in different contexts, how it may differ from related concepts (i.e., management), and some critiques of leadership as generally conceived.