The second edition of this celebrated book by two of the world's leading researchers in social work introduces readers to the main theories, theorists and perspectives that contribute to the debate on social work theory and social work methods. It brings together some outstanding international researchers in social work to challenge the reader to critically question how they think about social work. The new edition includes a focus on the psychosocial perspective, with three new chapters on: - Cognitive behavioural approaches - Attachment theory and psychoanalytic social work - Ecological approaches. Each chapter allows the reader to relate the theories and methods discussed to their own personal experiences. This reader friendly book includes student questions, glossaries and recommended reading so that students and practitioners can reappraise and expand the knowledge they have learned. This book will be valuable for undergraduate and postgraduate students taking courses in social work theory and research methods, social work interventions and perspectives as well as post qualifying students and researchers in social work.