One of the three components of the professional training of a consultant psychologist, psychotherapist (hereinafter referred to as therapist) is supervision. In the process of supervision of practical work, development and growth of the professional skills of therapists also occur. It can hardly be said that any therapist has reached such a level of skill that he does not need supervision. Supervision is a form of professional community, business cooperation, which has a beneficial effect on the therapist, regardless of his experience. Constant formation and development is a qualitative feature of our profession. And just as everything that develops, is in process, needs support, so the therapist, experiencing quite natural difficulties in working with clients, needs the support of other professionals, needs cooperation with them. So, the first function of supervision is professional support. Supervision is a view from at least two people - the supervisor and the supervisee - on the work of the therapist. Due to the experience, the otherness of the supervisor (supervisors), thanks to interaction, co-creation in the supervision process, a stop and rethinking of what is happening in the therapeutic space occurs. The supervision procedure is carried out for the sake of a specific client, whose case is presented, for the sake of the therapist, who through supervision becomes more effective in helping and other clients as well. Thus, the second function of supervision is an educational function that expands the boundaries of professional competence. Rimantas Kociunas in the article “The Supervision Process: An Existential View” writes that in the process of undergoing supervision, the therapist has the opportunity to learn: · better understand his clients; be aware of your own feelings towards clients and your reactions to them; · by analyzing what is happening between the therapist and the client in the therapy process and what is happening between the supervisor and the supervisee in the supervision process, understand the subtle nuances of the therapeutic relationship: · better see the degree of effectiveness of using your own therapeutic interventions, to what extent they are applied in a timely manner, in an appropriate place and in an appropriate manner, what impact they have on the therapeutic relationship and the client’s progress towards intended goals; · structure therapeutic interactions, both during an individual session and in the process of therapeutic work as a whole; · find and better use their potential in therapy. Like any process that promotes development, supervision cannot do without crises. It may be difficult for the therapist to abandon his own professional worldview, even when it is clearly unproductive, and to be open to changes in his therapeutic positions. The essence of a crisis in supervision for a therapist is the experience of his vulnerability and at the same time his readiness to accept new information about his case, about himself as a therapist. It is through a crisis that the therapist outgrows himself and expands the boundaries of his experience. Thanks to the formation of adequate self-esteem in the process of supervision, new growth opportunities open up, and the specialist’s zone of proximal development for himself is obvious. The essence of the third, guiding, function of supervision is to help the therapist realize and manage the characteristics of his own personality. Because it is possible for our attitudes, blind spots, and vulnerabilities to influence the therapeutic process. When this influence is unconscious, and therefore uncontrollable, then it can act antitherapeutically. Supervision helps the therapist to use his own limitations for the benefit of the client. Supervision can be individual or in a group. Group supervision has its advantages. Groups provide more varied feedback. The scope of possibilities in group supervision gives each therapist, beginner or experienced, a choice of what he is ready to accept, what he can accept at his level of development. In a group there is a wider».