Leadership is both a research field and a practical ability encompassing the ability of an individual or business to "lead" or guide other people, groups, or entire organizations. Professional literature debates various viewpoints, contrasting Eastern and Western approaches to leadership, and (inside the West) US vs. European approaches. US academic environments define leadership as "a practice of social influence in which a person can enlist the aid and support of other people in the accomplishment of a frequent task".

Leadership seen from a non-academic standpoint encompasses a view of a leader who can be moved not only by communitarian goals but also by the search for individual power. Leadership can derive from a combination of several elements.

Studies of leadership have produced theories regarding traits, situational interaction, function, behavior, power, vision and values, charisma, and intelligence, amongst others.

A leadership style is a pioneer's style of offering direction, implementing plans, and inspiring people. It is the end result of the leader's philosophy, personality, and experience. Rhetoric specialists have also 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 minimal time to converge within an arrangement and where a designated authority has significantly more experience or experience than the remainder of the group, an autocratic leadership style could be best; however, at a highly motivated and aligned team using a homogeneous level of expertise, a more democratic or Laissez-faire style might be more effective. The design adopted should be the one that most effectively achieves the objectives of the group whilst balancing the interests of its unique members.

A field where leadership style has gained strong focus is that of military science, recently expressing a holistic and integrated perspective of leadership, including how a leader's physical presence decides how others perceive that pioneer. The factors of physical existence are military bearing, physical fitness, confidence, and resilience. The leader's intellectual capacity can help to conceptualize solutions and get knowledge to do the job. A leader's conceptual skills apply agility, judgment, invention, interpersonal tact, and domain knowledge. Domain awareness for leaders encircles technical and tactical knowledge in addition to cultural and geopolitical significance.