The term “leader,” commonly used in French today, comes from the English verb “to lead.” It refers to how an individual within a group imposes their vision and the path to follow, and exerts their authority over other members so that they can unite their efforts to achieve a common goal. The concept of a leader is linked to the concept of leadership, which has become a major theme of study and research in management science and business administration. Leadership has been the subject of numerous books, articles, and academic conferences. Some journals are even devoted exclusively to this topic.