In patients with borderline personality disorder, 10 of 12 symptom domains improved after 1 year of psychodynamic therapy focusing on transference, the patient’s transfer of feelings or conflicts to the therapist. In the comparison of interventions by Clarkin et al. (CME, p. 922), supportive treatment and behavior therapy were followed by improvements in six and five symptom domains, respectively. Transference-focused psychotherapy was associated with decreases in both suicidality and anger, whereas each of the other treatments decreased only one or the other. The relationship between treatment results and the therapist’s focus on emotion in short-term psychodynamic psychotherapy was explored in a meta-analysis by Diener et al. (p. 936). They identified 10 adequately designed studies that examined therapist activities facilitating the experience or expression of emotion by patients with a variety of diagnoses or problems. Emotional facilitation by the therapist was associated with a 30% greater likelihood of improvement, compared with other psychotherapy. Thus, this finding may help answer the question “What makes psychotherapy work? ” An editorial on these articles by Dr. Glen Gabbard appears on p. 853.