The efficacy of cognitive bibliotherapy for adolescents experiencing mild and moderate depressive symptomatology was examined with a group of 22 community-dwelling adolescents. Cognitive bibliotherapy was determined to be superior to a delayed-treatment control condition. The treatment produced both statistically and clinically significant improvements in depressive symptoms. Treatment gains were maintained at 1-month follow-up. A significant decrease in dysfunctional thoughts, but not in negative automatic thoughts, was found after treatment. These results contribute to converging evidence on the efficacy of cognitive-behavioral treatments for adolescents experiencing depressive symptoms.