There are few things more important to human activity than leadership. Most people, regardless of their occupation, education, political or religious beliefs, or cultural orientation, recognize that leadership is a real and vastly consequential phenomenon (Yukl, 1998). Political candidates proclaim it, pundits discuss it, companies value it, and military organizations depend on it. The French diplomat Talleyrand once said, “I am more afraid of an army of 100 sheep led by a lion than an army of 100 lions led by a sheep.” Effective leadership guides nations in times of peril, promotes effective team and group performance, makes organizations successful, and, in the form of parenting, nurtures the next generation. Winston Churchill, the Prime Minister of Great Britain during World War II, was able to galvanize the resolve of his embattled people with these words: “I have nothing to offer but blood, toil, tears, and sweat.” When leadership is missing, the effects can be equally dramatic; organizations move too slowly, stagnate, and often lose their way. The League of Nations, created after the World War I, failed to meet the challenges of the times in large part because of a failure to secure effective leadership. With regard to bad leaders, Kellerman (2004) makes an important distinction between incompetent leaders and corrupt leaders. To this we might also add leaders who are “toxic.” Bad leadership can perpetuate misery on those who are subject to its domain. Consider the case of Jim Jones, the leader of the Peoples Temple, who in 1978 ordered the mass suicide of his 900 followers in what has been called the Jonestown Massacre, or the corrupt leadership of Enron and Arthur Anderson that impoverished thousands of workers and led to the dissolution of a major organization. These examples remind us that there are many ways in which leadership can fail.
When you think of leadership, the ideas of power, authority, and influence may come to mind. You may think of the actions of effective leaders in accomplishing important goals. You may think of actual people who have been recognized for their leadership capabilities. Dwight D. Eisenhower, 34th president of the United States, defined leadership as “the ability to decide what is to be done, and then to get others to want to do it.” Leadership can be defined as the ability of an individual to influence the thoughts, attitudes, and behavior of others. It is the process by which others are motivated to contribute to the success of the groups of which they are members. Leaders set a direction for their followers and help them to focus their energies on achieving their goals. Theorists have developed many different theories about leadership, and although none of the theories completely explains everything about leadership, each has received some scientific support. Some of the theories are based on the idea that there are “born leaders” with particular traits that contribute to their ability to lead. Other theories suggest that leadership consists of specific skills and ...