In this article, we describe the acute phase of a cognitive-behavioral therapy (CBT) developed for and utilized in the Treatment for Adolescents With Depression Study (TADS). The acute phase of TADS CBT consists of 8 skills that were considered essential to any CBT intervention for adolescent depression (e.g., mood monitoring, increasing pleasant activities, identifying cognitive distortions, and developing realistic counterthoughts). In addition, 5 optional individual CBT skills (e.g., relaxation, affect regulation) can be incorporated into treatment, depending on the needs of the adolescent. We describe each of these individual skills by reviewing the rationale for their inclusion in the treatment protocol and describing the format that is used to teach the skill area. Recommendations are provided for dealing with common challenges that can occur in the teaching of each skill module. It is our hope that clinicians will find this a useful introduction to this particular form of treatment and a practical guide to dealing with clinical problems common to the delivery of any cognitive behavioral intervention with depressed teens.