Given the prevalence of substance abuse in general clinical populations, it is important for healthcare providers to have knowledge and skill in the treatment of these problems. Evidence-Based Practice (EBP) involves the integration of the best evidence with clinical expertise and patient values. This text is designed as a bridge for practitioners that will provide up-to-date evidence reviews as well as information on how to best keep up with emerging trends in the field.  The editors have gathered expert authors to provide a much needed summary of the current status of the evidence based practice for both the assessment and treatment of specific substance use disorders.