The book is divided into five sections. The first introduces the concept of the matrix model and then draws some lessons from the history of public mental health care, tracing the major changes from asylum to community-based treatment. In the next two sections, the authors elaborate on their matrix, which includes the spatial dimensions of regional, local, and patient levels and the temporal dimensions of the input process and outcome phases of care. This serves as the basis for the systems approach that is elaborated in the fourth section, which includes a clear exposition on the ethics of care from a distributive justice perspective. In addition to ethics, the issues of human resources and evidence-based care are taken up in this section. Then, in the fifth and most compelling section, the authors invite pieces from five different contributors using the model to describe mental health systems in Australia, Canada, central and eastern Europe, the Nordic European countries, and finally the United States. A conclusion provides an agenda for reform for the future, but the book, I think, is even more valuable as a description of the past and the present.