In this clear and concise primer, Deirdre Heenan and Jennifer Betts lay out key concepts and debates in the field of mental health. With overviews of recent developments and stakeholder perspectives, 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. Assuming no prior knowledge of the subject, the guide includes: • text boxes and figures to illustrate key points; • end of chapter summaries; • international case studies; • further reading guides. For students, practitioners, policy makers and newcomers alike, this is an accessible and comprehensive guide to an increasingly prioritised and debated topic.