Book excerpt: This manual, a supplement to Motivational Enhancement Therapy and Cognitive Behavioral Therapy for Adolescent Cannabis Users: 5 Sessions, Cannabis Youth Treatment (CYT) Series, Volume 1, presents a seven-session cognitive behavioral treatment (CBT7) approach designed especially for adolescent cannabis users. It addresses the implementation and evaluation of cognitive behavioral treatment for adolescent marijuana users as part of the Cannabis Youth Treatment Project: A Cooperative Agreement for Evaluating the Efficacy of Five Treatments for Adolescents With Self-Reported Marijuana Use and Problems Associated With Its Use. This volume provides instructions for sessions 6 through 12 of the cognitive behavioral therapy (CBT) for adolescent marijuana users. The first five sessions (two motivational enhancement therapy [MET] sessions and three CBT sessions) are described in Motivational Enhancement Therapy and Cognitive Behavioral Therapy for Adolescent Cannabis Users: 5 Sessions, CYT Series, Volume 1.