Anxiety in children and adolescents is expected and normal at specific times in development. If anxieties become severe and begin to interfere with the daily activities of childhood, such as separating from parents, attending school and making friends, evidence shows that a treatment program based on the principles of cognitive-behavioral therapy can help. Written by the developers of an empirically supported and effective CBT program for treating adolescents with Social Anxiety Disorder, this therapist guide includes all the information and materials necessary to implement successful treatment with groups. The treatment described is research-based with a proven success-rate when used in a group therapy setting. The renowned authors provide clinicians with step-by-step instructions for teaching their adolescent clients skills that have been scientifically tested and shown to be effective in treating SAD, as well as shyness, lack of assertiveness, or introversion. Designed to be used with the corresponding workbook, this guide outlines a two-phase program focusing on skill development and exposure exercises. When used together, both books form a complete treatment package that can be successfully used by practicing mental health professionals.