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