This chapter provides an overview of the clinical management of stalkers, particularly the evidence regarding the effectiveness of psychological approaches, with specific reference to treating different ‘types’ of stalkers. B. Rosenfeld’s review remains the most extensive account of the clinical management of stalkers, and while he acknowledges the limitations of the extant literature, nonetheless he concludes that there are grounds for “guarded optimism that effective treatments may exist”. Most stalkers will come to treatment through their involvement in the criminal justice system, although in countries with comprehensive care systems, stalking may also be identified by other services, such as health, social, housing, or community organisations. Specific approaches from cognitive-behavioural therapy for jealousy, anger, and rumination may be relevant, in addition to addressing antisocial attitudes and beliefs that sustain and justify any aggressive behavior. The behaviour is motivated by a desire to establish a relationship with someone who has attracted their interest.