Now in an updated fifth edition, this book provides readers with overviews of all the key theories, concepts and terminology associated with mental health, summarising them succinctly in a series of easily digestible yet expertly written entries. Structured into four sections, the text starts with entries related to Mental Health and Mental Abnormality, before moving onto Mental Health Services and Society. The new edition offers: 68 concise chapters including new entries on ADHD, Secondary Prevention, Challenges for Practitioners, and The Impact of Social Media on Mental Health. Updates across all chapters to make the content more in-line with contemporary critical debates in mental health, including new terminology and references to modern mental health services. A new contextualising introduction on the sticky subject of mental health terminology. Additional further reading examples and suggestions An essential guide for students of mental health studies, health, nursing, social work, psychology, counselling and psychotherapy.