“Mikulincer and Shaver, two of our leading and most creative attachment theorists, have written an outstanding book that elevates attachment theory and future research to new levels. Their ambitious expansion of the theory to explain security dynamics beyond individuals to dyads, groups, and societal units is one of the boldest and most important extensions of the theory since Bowlby's original formulations. This book is a 'must read' for anyone interested in attachment processes and dynamics.”

—Jeffry A. Simpson, PhD, Distinguished University Teaching Professor and Chair, Department of Psychology, University of Minnesota


“More than any other scholars, Mikulincer and Shaver have led the evolution of attachment from a theory of early child development to a lifespan model of relationships and emotions. This far-reaching and deeply integrative book takes attachment theory the next step forward. It demonstrates how basic principles can be expanded to describe and explain the adaptive benefits of attachment security throughout life and across our many personal, social, group, and organizational relationships. Spanning diverse theories and a cornucopia of research, Mikulincer and Shaver’s eloquent, incisive account is sure to stimulate the intellectual appetites of novice and experienced scholars alike.”

—Harry T. Reis, PhD, Professor of Psychology and Dean's Professor in Arts, Sciences and Engineering, University of Rochester


“In Attachment Theory Expanded, Mikulincer and Shaver move attachment theory beyond a focus on security and safety, revealing the importance of a secure base in fostering learning, growth, friendship, intimacy, and psychological wellness. This highly accessible volume not only updates traditional attachment theory, but also links it to other contemporary perspectives in motivation, positive psychology, and mental health. Destined to become a classic, this book is relevant to scholars, students, and practitioners across the fields of social, clinical, and developmental psychology.”

—Richard M. Ryan, PhD, Institute for Positive Psychology and Education, Australian Catholic University; Distinguished Professor, Ewha Womans University, South Korea