The document summarizes Jellinek's phases of alcoholism which include a pre-alcoholic phase, prodromal phase, crucial phase, chronic phase. It also discusses Prochaska and DiClemente's stages of change model for addiction which includes precontemplation, contemplation, preparation, action, maintenance, and relapse stages. Finally, it outlines different treatment approaches for alcohol dependence like motivational interviewing, behavioral interventions, relapse prevention, psychosocial treatments, and functional analysis.