The first paper describes an early group intervention model with active alcohol and other drug-using clients in a community- based setting. This model has been developed to address a service-delivery gap in the substance abuse field that traditionally requires individuals to first identify as addicts or alcoholics and then make a commitment to abstinence in order to begin and remain in treatment. A second paper presents an inpatient psychoeducational group model that has been developed to treat gay men and lesbians with alcohol and other drug abuse problems; it describes the unique issues that face this population and how they can be addressed by group services providers. This is followed by a paper that discusses the need to assist clients in connecting to outpatient clinics once they complete inpatient treatment. It presents an innovative transition group model developed for inner-city residents who are receiving inpatient alcoholism rehabilitation in a hospital-based alcoholism facility. A paper describes a hospital-based early recovery group program for HIV-infected, inner-city clients and discusses innovative strategies to engage clients in the program. Another paper discusses the dynamics of substance-abusing clients and describes a model of treatment that is effective during the early phases of outpatient group therapy. A sixth paper describes a group treatment approach for adult male clients who are not only chemically dependent but also have diagnosed personality disorders. The final paper presents an innovative model of multiple oppression used in group psychotherapy with HIV-infected injecting drug users. The authors outline the various oppressed group memberships that impact the lives of black and Latino HIV- infected injecting drug users and describe effective group interventions. For individual papers, see NCJ-170451-56. References accompany the papers, and a subject index is provided.