Approaches that schools can use to create a high-quality, professional, working community are provided in this journal issue. The report uses a case study to illustrate the process. A review of research reveals at least five major dimensions of the professional learning community: supportive and shared leadership, collective learning and application of learning, shared values and vision, supportive conditions, and shared personal practices. In the school analyzed for this report, data were collected to reveal how the professional learning-community's characteristics were expressed and how the school staff evolved into a professional community of learners. The data were gathered through personal interviews of teachers, present and past principals, parents, an instructional guide, a central-office staff person, and a consulting professor. The report provides a description of the school; its history and development; the components of the professional learning community at the school; aspects of supportive and shared leadership; facets of collective learning and the application of learning; shared values and vision in the school; evidence of supportive conditions; and examples of shared personal practice, such as when teachers visit classrooms to learn from each other. (RJM)