Mental illness accounts directly for 14% of the global burden of disease and significantly more indirectly, and recent reports recognise the need to expand and improve mental health delivery on a global basis, especially in low and middle income countries. This text defines an approach to mental healthcare focused on the provision of evidence-based, cost-effective treatments, founded on the principles of sharing the best information about common problems and achieving international equity in coverage, options and outcomes. The coverage spans a diverse range of topics and defines five priority areas for the field. These embrace the domains of global advocacy, systems of development, research progress, capacity building, and monitoring. The book concludes by defining the steps to achieving equality of care globally. This is essential reading for policy makers, administrators, economists and mental health care professionals, and those from the allied professions of sociology, anthropology, international politics and foreign policy.