Book excerpt: Prevention of mental illness and mental health promotion have often been ignored in the past, both in undergraduate and postgraduate curricula. Recently, however, there has been a clear shift towards public mental health, as a result of increasing scientific evidence that both these actions have a serious potential to reduce the onset of illness and subsequent burden as a result of mental illness and related social, economic and political costs. A clear distinction between prevention of mental illness and mental health promotion is critical. Selective prevention, both at societal and individual level, is an important way forward. The Oxford Textbook of Public Mental Health brings together the increasing interest in public mental health and the growing emphasis on the prevention of mental ill health and promotion of well-being into a single comprehensive textbook. Comprising international experiences of mental health promotion and mental well-being, chapters are supplemented with practical examples and illustrations to provide the most relevant information succinctly. This book will serve as an essential resource for mental and public health professionals, as well as for commissioners of services, nurses and community health visitors.