In an effort to understand and document the elements that make professional learning communities effective, a new report presents case studies of two schools drawn from survey data of 33 New Jersey public schools involved in a state-sponsored professional learning community training program. The report, Building a Learning Community: A Tale of Two Schools, is authored by Dan Mindich and Ann Lieberman and produced through Learning Forward and the Stanford Center for Opportunity Policy in Education (SCOPE). Among the key findings: sustaining focus is vital, collegiality is not enough, and leadership is key. This is the final report from the multiphase research initiative, Status of Professional Learning.