Due to treatment accessibility and cost issues, interest in self-help programs (e.g., bibliotherapy, telehealth) for common psychological disorders is growing. Research supporting the efficacy of such a program for social anxiety, however, is limited. The present study examined the efficacy of an 8-week self-directed cognitive behavioral treatment with minimal therapist involvement for social phobia based on a widely available self-help book. Twenty-one adults with social phobia initially received either treatment (i.e. assigned readings in the workbook with limited therapist contact) or were wait-listed. Wait-listed patients eventually received the same self-directed treatment. Results revealed that the self-help/minimal therapist contact treatment was superior to wait-list on most outcome measures. Across the entire sample, reductions in social anxiety, global severity, general anxiety, and depression were observed at posttest and 3-month follow-up. These findings provide preliminary support for using this self-help workbook for individuals with mild to moderate social anxiety in conjunction with infrequent therapist visits to reinforce the treatment principles. Study limitations and future directions are discussed.