The figure of the leader always has stated throughout history d according to the roles they play, political, cultural. Scientific, social within others, and each of them have submitted their own attributes, traits that have distinguished them, have placed them in a special level for those who have evaluated their works, achievements, impact, reaches. Each leader also coincide with some common traits such as empathy, motivation, persuasion, enthusiasm, perseverance, responsibility, trust, have generated their own attributes that makes them special, and this entails to those who are interested in the study of leadership in evaluating what are the most significant aspects to be considered in making that you recognize a good leader, in addition to other aspects that help to understand it. In this writing we are entering simply select those notes that allow us to understand the dimension of the leader, but we we specify especially in managerial leadership, to do this we have selected contributions to scholars on the leadership they have bounded through his research, respecting their content and sources. For example Carlos Herreros, gives us, which always has been debated whether leaders are born or are made; in this regard, evolutionary psychologists take us to relate the current characteristics of leaders with those who went to the first homo sapiens; If lead is a science or an art; If being a leader it is different from being a manager, a Manager; about what they are or should be their characteristics, skills and attitudes. From the middle of the 1990s, he studied and elaborates the emotional intelligence of the leaders and define their core competencies based on one fairly Herreros indicates that despite the confusion that generate as much information and as many points of view, it seems that he is being achieved a certain consensus about what are some essential characteristics of leaders, mention us some that we present below in summary form: (((a) managed inertizan toxicity which produces all human organization (b) b) reveal their weaknesses.