Leadership is both a research field and a practical skill encompassing the ability of an individual or business to "direct" or guide other individuals, groups, or entire organizations. Professional literature debates various perspectives, contrasting Eastern and Western approaches to leadership, and also (inside the West) US vs. European approaches. US academic environments define leadership as "a process of social influence in which a individual could enlist the help and support of others in the achievement of a common task".

Leadership seen from a non-academic perspective encompasses a view of a leader who can be transferred not only by communitarian targets but also by the search for individual power. Leadership can derive from a combination of many elements.

Studies of leadership have produced theories involving traits, behavioural discussion, function, behavior, ability, vision and values, charisma, and intelligence, among others.

A design style is a pioneer's style of offering management, executing plans, and inspiring people. It is the end result of the leader's philosophy, personality, and experience. Rhetoric specialists also have developed models for understanding leadership (Robert Hariman, Political Style, Philippe-Joseph Salazar, L'Hyperpolitique. Technologies politiques De La Domination).

Different situations call for different leadership styles. In a crisis when there is little time to converge on an arrangement and where a designated authority has much more experience or expertise than the remainder of the group, an autocratic leadership style may be bestnevertheless, in a highly motivated and aligned team using a homogeneous degree of expertise, a more democratic or Laissez-faire style might be more successful. The design adopted should be the one that most effectively achieves the aims of the group whilst balancing the interests of its individual members.

A discipline where leadership style has gained powerful focus is that of military science, recently expressing a holistic and integrated perspective of leadership, such as how a leader's physical presence decides how others perceive that leader. The variables of physical presence are military bearing, physical fitness, confidence, and endurance. The leader's intellectual capacity helps to conceptualize solutions and acquire knowledge to perform the job. A leader's Profession skills apply agility, judgment, invention, social tact, and domain knowledge. Domain knowledge for leaders encompasses technical and tactical knowledge in addition to cultural and geopolitical significance.