Background/Theoretical Accounts: The developmental psychopathology of social anxiety and phobia in adolescents.- Developmental Epidemiology of Social Anxiety and Social Phobia in Adolescents.- Easier to Accelerate Than to Slow Down: Contributions of Developmental Neurobiology for the Understanding of Adolescent Social Anxiety.- Developmental Transitions in Adolescence and their Implications for Social Anxiety.- Recognition and Manifestations of Adolescent Social Anxiety and Phobia in Diverse Settings: Assessment of Social Anxiety in Adolescents.- Social Anxiety and the School Environment of Adolescents.- Social Anxiety and Romantic Relationships.- Adolescent Social Phobia in Clinical Services.- Cognition-focused Interventions for Social Anxiety Disorder Among Adolescents.- Interpersonal Approaches to Intervention: Implications for Preventing and Treating Social Anxiety in Adolescents.- School-based Interventions for Adolescents with Social Anxiety Disorder.- Social Skills-based Treatment for Social Anxiety Disorder in Adolescents.- Pharmacotherapy for Adolescent Social Phobia.- Concluding Remarks.