Dialectical Behavior Therapy (DBT) was developed in the 1980’s for treatment of severe mood and behavioral dysregulation, including suicide and self-directed harm.  It was published in manualized form in 1993.  Since that time there have been approximately 73 randomized controlled trials conducted (38 standard DBT, 32 skills-only applications, and 3 adaptations)  examining the effectiveness of this treatment.  The current workshop will review outcomes of recent studies and meta-analyses in an overview of what we know to date about who the treatment is useful for, what benefits can reliably be seen, and necessary elements for success.