This document contains summaries of several articles on leadership. The first article discusses that no leader is perfect and the best leaders focus on their strengths and find others to make up for their limitations. It also outlines four steps in a leadership framework: sense making, relating, creating a vision, and inventing. The second article discusses how leaders can use difficult experiences or "crucibles" to reflect on their values and grow as leaders. The third discusses a study that found the most effective leaders have personal humility and professional will. It also notes that leadership can develop under the right circumstances.