The word leadership can refer to:

1. Those entities that perform one or more acts of leading.
2. The ability to affect human behavior so as to accomplish a mission.
3. Influencing a group of people to move towards its goal setting or goal achievement. (Stogdill 1950: 3)

A leader is simply someone who has followers.

Categories and types of leadership

Leadership has a formal aspect (as in most political or business leadership) or an informal one (as in most friendships). Speaking of "leadership" (the abstract term) rather than of "leading" (the action) usually it implies that the entities doing the leading have some "leadership skills" or competencies.

Types of leadership styles

The bureaucratic leader (Weber, 1905) is very structured and follows the procedures as they have been established. This type of leadership has no space to explore new ways to solve problems and is usually slow paced to ensure adherence to the ladders stated by the company. Leaders ensure that all the steps have been followed prior to sending it to the next level of authority. Universities, hospitals, banks and government usually require this type of leader in their organizations to ensure quality, increase security and decrease corruption. Leaders that try to speed up the process will experience frustration and anxiety.

The charismatic leader (Weber, 1905) leads by infusing energy and eagerness into their team members. This type of leader has to be committed to the organization for the long run. If the success of the division or project is attributed to the leader and not the team, charismatic leaders may become a risk for the company by deciding to resign for advanced opportunities. It takes the company time and hard work to gain the employees' confidence back with other type of leadership after they have committed themselves to the magnetism of a charismatic leader.

The autocratic leader (Lewin, Lippitt, & White, 1939) is given the power to make decisions alone, having total authority. This leadership style is good for employees that need close supervision to perform certain tasks. Creative employees and team players resent this type of leadership, since they are unable to enhance processes or decision making, resulting in job dissatisfaction.

The democratic leader (Lewin, Lippitt, & White, 1939) listens to the team's ideas and studies them, but will make the final decision. Team players contribute to the final decision thus increasing employee satisfaction and ownership, feeling their input was considered when the final decision was taken. When changes arises, this type of leadership helps the team assimilate the changes better and more rapidly than other styles, knowing they were consulted and contributed to the decision making process, minimizing resistance and intolerance. A shortcoming of this leadership style is that it has difficulty when decisions are needed in a short period of time or at the moment.