"Art without borders" is a well-established truth, a reality that Sabina Chagina has been demonstrating through personal example for 20 years. Sabina is a curator, art director, founder of the platform SABSTANCE, co-founder of the Artmossphere street art biennale, initiator of the Urban + Art direction, and the WIN-WIN market of contemporary art at the CSI Winzavod. She has been studying street culture and art, starting her creative path with hip-hop and graffiti. Sabina actively engages in educational activities, delivering lectures on the history of street art and public art. She also works in producing, bringing visibility to artists whose work is rooted in street art."ARTMOSSPHERE" is the first and only Russian biennale that introduces the public to street art representatives from around the world. The biennale took place in Moscow in 2014, 2016, 2018, and 2023. The second edition of the "ARTMOSSPHERE" biennale "Invisible Wall" (2016) was among the top three in the "Exhibition of the Year" nomination of The Art Newspaper Russia award and was recognized for its internationality, spectacularity, and popularization of the most democratic art genre. "ARTMOSSPHERE" creates conditions for self-realization, growth, and promotion of authors through continuous collaboration and integration into projects, including those that change the appearance of urban spaces.Among Sabina's curatorial projects are the VKontakte digital art exhibition "Supernovae" (2023), the encyclopedia of Russian street art (Moscow, 2019), the public art program within the "Art Quarter" project in the "Octava" cluster (Tula, 2019), the first Russian solo exhibition of Shepard Fairey "Force Majeure" (MMOMA, Moscow, 2018), the public art program within the 5th Yakutsk Biennale of Contemporary Art BY-18 (Yakutsk, 2018), the "30 Facets" street art festival in 11 Russian cities (2016-2019), street wave art auction in collaboration with Ruarts Foundation (2015-2019), Russia's first VR exhibition "Metaforms" at the MARS Center (Moscow, 2016), and many others.In 2023, Sabina created "SABSTANCE" — another project aimed at creating new multigenre formats that bring together various participants in the field of contemporary culture.