Leadership can be defined as influencing others through both formal and informal means to achieve shared objectives. Formal leadership stems from a person's position, while informal leadership comes from personal skills and qualities. There are different types of power that leaders can utilize, including legitimate power from their role, as well as reward, coercive, expertise, and referent powers. Key traits of strong leaders include ambition, motivation, honesty, self-confidence, and a high need for achievement. High performing leaders are productive and accomplish goals, while low performers do not maximize opportunities. Leading focuses on long-term vision and change, while managing emphasizes maintaining the current system and process.