The 6th edition serves as a definitive resource for nursing students, educators, and practitioners specializing in mental health care. It covers core psychiatric concepts, advanced therapeutic communication techniques, and evidence-based practices essential for managing mental health disorders. This edition integrates updated DSM criteria, legal and ethical considerations, and the latest developments in psychopharmacology and nursing interventions. Enhanced with real-world case studies, clinical scenarios, and critical thinking exercises, it equips nurses with the skills to provide holistic and patient-centered psychiatric care across diverse settings. Comprehensive and user-friendly, it emphasizes the importance of empathy, resilience, and self-care in mental health nursing practice.