According to the 2009 National Survey on Drug Use and Health (NSDUH) approximately 22 million Americans over age 12 reportedly use illicit drugs. This figure accounts for almost 10 percent of the population in that age group (Substance Abuse and Mental Health Services Administration [SAMHSA] 2010).As a result counselors commonly work with clients who are affected by drug and alcohol abuse. Some providers choose to specialize in addiction prevention or treatment. In either case counselors need to have at least a basic understanding of addiction so they can effectively work with addicted clients or affected family members of addicted persons.Denial is a strong feature in addiction. Typically clients are in denial regarding the severity of their use their level of addiction and consequent effects on themselves and their families. As a result interventions have become a popular method of beginning treatment for addiction.