Bringing together leading researchers, this is the first volume to comprehensively examine popularity among children and adolescents: what it is, how it is attained, and its impact on peer interaction and individual development. The book clarifies how popularity is distinct from being socially accepted or well liked and how it is different for girls and boys. Behaviors that characterize popular peers are explored, as are the developmental benefits and risks of popularity and its connections to peer influence processes. Innovative measurement approaches and research designs are clearly described. This book will be invaluable to researchers, practitioners, and students in developmental, clinical, school, and educational psychology; counseling; and related disciplines. It may also serve as a supplemental text in graduate-level courses.