Recent epidemiological studies find the prevalence of Tourette’s syndrome and milder related disorders on the rise. This SIG provides an opportunity to share clinical experience and research on these disorders. Recent developments in the pathobiology, epidemiology, natural history, and clinical management of these disorders are discussed.  Advances in non-pharmacological interventions, such as Habit Reversal Therapy and repetitive transcranial magnetic stimulation, are highlighted. Participants are encouraged to bring their questions and cases to share.