Artistic communication is the interaction between the viewer and the work of art. Its success is the highest goal of an art mediator, whose role is to establish and maintain a dialogue between the subjects of artistic communication. n this regard, art mediation is understood by the authors of the article as a participatory practice that teaches visitors of art museums and galleries the language of art and its interpretation. This view is confirmed by a review of the concept of artistic communication in scientific literature, as well as an analysis of the practice of art mediation, its basic principles (such as openness, polyphony and the use of an individual approach by an art mediator) are revealed on the example of the Krasnoyarsk Museum Biennale «Negotiators» in the Krasnoyarsk Museum Center.