Mintz reports her twelve years of supervision noting the following observations. (1) Given certain basic skills in psychodiagnosis and technique, difficulties in group and individual therapy are most often due to unrecognized emotional conflicts in the therapist, including but not limited to countertransference in the usual sense. (2) With the exception of traditional control analysis for candidates in classical psychoanalytic training, supervision is most effective when conducted in a group. (3) Experiences are more instructive and constructive than theoretical instruction in enhancing the cognitive and technical abilities of the supervised therapist. The author's goal in supervision is not only the optimal development of the therapist as a technician but also as an empathic human being.