Using a bio-psychosocial framework, this popular textbook explains the wide basis of perspectives on which we build an understanding of people's behaviours and why and how we respond in the way we do. This book accessibly explains key concepts including attachment, trauma, developmental psychology and oppression to highlight and enhance social workers' understanding of practice. Thoroughly updated since its popular first edition, the book now includes: A brand new chapter on Attachment More coverage of neurological concepts and their influence on behaviour Expanded material on older people and resilience, crime and violence against black and minority ethnic groups, and domestic violence issues More coverage of mental health, alcohol and drugs and their impact on behaviourFully updated to reflect the Munro report and recent social worker task force recommendations, this new edition also includes brand new and additional case studies and pedagogy - making this a practical, insightful and wonderfully comprehensive text suitable for all students of social work.