The reauthorization of the U.S. Elementary and Secondary Education Act, referred to as the Every Student Succeeds Act (ESSA), emphasizes evidence-based initiatives while providing new flexibilities to states and districts with regard to the use of federal funds, including funds to promote effective school leadership. In response, state and district policymakers are engaged in efforts to design, implement, and evaluate evidence-based school leadership interventions. This guide describes six types of school leadership interventions: principal preparation programs, strategic staff management (recruitment, selection and placement), professional learning, leader evaluation systems, working conditions, and school improvement. The guide summarizes common components of evidence-based interventions and unpacks the relationships between the intervention activities and student outcomes. It also provides guidance on creating logic models. The guide expands on RAND's 2017 synthesis of the evidence base on school leadership interventions, "School Leadership Interventions Under the Every Student Succeeds Act: Evidence Review: Updated and Expanded." [For "School Leadership Interventions under the Every Student Succeeds Act: Evidence Review. Updated and Expanded. Research Report. RR-1550-3-WF," see ED581652.]