A principal's job is complex, demanding, and multi-faceted. Effective principals shape a school's academic vision and foster a climate for learning. In addition, they develop leadership capacity in teachers and staff, promote sound instructional practices, and use resources and data to drive school improvement (Mendels, 2012). Given these significant responsibilities, it is unsurprising that abundant research indicates that the quality of school leadership is correlated with school effectiveness. Principals and school leaders can impact student achievement, graduation rates, and the attraction and retention of qualified teachers (Carver-Thomas & Darling-Hammond, 2017). School leaders clearly play an important role in school systems. As such, the way leaders are identified, prepared, hired, and supported is critical to high quality teaching and learning in schools. [The report was written with Soung Bae.]