This paper reviews theoretical literature and empirical investigations concerning h e role of values in psychotherapy. Contrary to traditional psychoanalytic conceptualization, the psychotherapeuric relationship is viewed in terms of interpersonal attraction and interpersonal influence and some degree of therapist-patient value similarity is considered a prerequisite for positive attraction, effective communication, and influence of therapist over patient. The importance of matching therapist-patient pairs on the value dimension is stressed. Psychotherapy-analogue research is cited as a vehicle for exploring the role of values in psychotherapy. j CONTENTS Definitional Problems . . 669 Theoretical Considerations . 670 Research on Values and Psychotherapy . . . . . 675 Conclusions . 682 References . 684The importance of values for psychotherapy1 has been acknowledged and emphasized in the literature primarily since the early 1950s. There have been two major reviews of the literature pertaining specifically to values and psychotherapy. Patterson (1959) reviewed the literature in terms of the four general headings: ( a ) values and criteria of mental health, ( b ) values and therapeutic methods, (c) values and selection of clients, and ( d ) the influence of the counselor's (therapisc's) values on the client. Ehrlich and Wiener ( 1961 ) made the most recent review of this literature. These authors emphasized problems in the measurement of values and other methodological problems of research concerned with values and psychotherapy. There have been at least as many empirical investigations of values and psychotherapy in the short period since the review by Ehrlich and Wiener as there were prior to their review. Most of these investigations have been done in the last few years. The present review is not concerned with v a l~~e s and criteria of mental health or with the very important problem of measurement of values in the psychotherapeutic setting. This review focuses on the effect of the therapist's values on the patient and on the interaction between therapist's and patient's values.