This is a concise, accessible introduction to the basic principles of attachment theory, and their application to therapeutic practice. Bringing together 70 years’ of theory and research, its expert authors provide a much-needed user-friendly guide to attachment-informed psychotherapy.The book covers: • The history, research base, and key figures and concepts of attachment theory • The key concepts of attachment theory, and their implications for practice • Neuroscience implications of attachment and its therapeutic relevance • The parallels and differences between parent-child attachment and the therapeutic relationship • The application of attachment in adult individual psychotherapy across a number of settings, also to couples and families • The applications of attachment to working with complex disorders • The applications of attachment in child psychotherapy