The group Twożywo (Mariusz Libel, Krzysztof Sidorek) was established in 1995, in Warsaw. It has been working in its present line-up since 1998. Its major field of artistic work is public space: a street, a wall, city fragments, which comprise the basic habitat of most people in the modern world. Twożywo's artistic projects aim at involving the passer-by, the viewer and the participant of social rituals; and with the use of selected media (billboards, stickers, templates, posters and murals) they want to provide them with subject matter that is usually absent from the mercantile visual environment, i.e. social, political and existential involvement. The group's work displays elements of pop art, constructivism and concrete poetry. They are also involved in net art projects.