Robert Katz identified three leadership skills called - technical skills, human skills, and conceptual skills as the basic personal skills essential for leadership. Leaders must possess these three skills that assist them in optimizing a leader's performance. Technical skills are related to the field, human skills are related to communicating with people and conceptual skills related to setting the vision.
The skills approach to leadership suggests that certain skills are important for effective leadership. Skills are what leaders can learn and develop, whereas traits are innate characteristics. The main skills needed for leadership, according to one such theory, are technical, human, and conceptual.