Deirdre Heenan lays out key concepts and debates in the field of mental health in this clear and concise primer. With overviews of recent developments and the perspectives of various stakeholders, the book introduces contemporary themes in policy and practice. It explores the prevalence, cost and social determinants of mental illness, the changing attitudes and stigma around them, and the roles of the state, voluntary and community sectors in designing and delivering services. For students, practitioners, policy-makers and newcomers alike, this is an accessible and comprehensive guide to an important area that is increasingly prioritised and debated.