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.