Recognizing that school leaders play a critical role in school performance, states and districts are rethinking how they prepare principals. But this retooling of preparation programs raises a number of important questions: What skills do new principals need? How can we identify aspiring principals with the potential to develop those competencies? And how can we use these insights to improve the training of leaders at all levels of the system, from teacher leaders to principal supervisors? In this webinar, New Leaders shares lessons learned for preparing principals and school leaders. The webinar will cover findings from a recent study that examined the effectiveness of principals prepared by New Leaders and identified competencies of aspiring school leaders that predicted better outcomes. The webinar includes a discussion of the knowledge and skills of aspiring principals that are most important for their future success as school leaders, and how New Leaders assesses aspiring leaders on those skills.