The education field could greatly benefit from a deeper understanding of the conditions and policy issues that affect the success of principals as leaders of learning, for better or worse. As part of its education leadership initiative, The Wallace Foundation has convened six “Leadership Issue Groups” for the last several years to address some of these questions and to identify what states, districts and schools can do to better support more learning-focused leadership. This set of reports, written by noted authorities on education leadership from the University of Washington’s Center for the Study of Teaching and Policy, includes an overview and six accompanying “State of the Field Reports” that were prepared in conjunction with the work of Wallace’s Leadership Issue Groups. The reports provide practitioners, policymakers and others a factual basis for considering a range of key leadership issues, including: data-informed leadership; resource allocation; redefining leadership roles; leadership assessment; improving governance; and high school transformation.