[T]he book by Gary G. Forrest represents an essential resource for counselors and psychotherapists: it is the first so informed and comprehensive examination of client and therapist self-disclosure and of their interdependence in therapeutic relationships. ... Forrest's book can be considered a well-informed personal research expanding Jourard's provoking view on effective therapists, who avoid compulsion to silence, to reflection, to interpretation, to impersonal technique, but instead are striving to know their patient, involve themselves in his situation and employ their powers in the service of his well-being and growth.