The Group of Six Artists (Grupa šestorice autora) was an artist collective founded in 1975 by the Croatian artists Mladen and Sven Stilinović, Fedor Vučemilović, Boris Demur, Vlado Martek and Željko Jerman in Zagreb, Croatia. In defiance of the restrictions set by the art institutions they performed their pieces in open air spaces using objects such as sun loungers and urban projections. They projected films onto buildings and also exhibited on city squares. The "exhibition-actions" (which were most likely a spontaneous reaction to the given circumstances) were shown in public spaces in Croatia and abroad, including the municipal bathing place on the Sava River, in the Upper Town Zagreb centre, in Sopot in New Zagreb, on the main square in Zagreb (1975), on the beach in Mošćenička Draga (1976), in Venice (1978) and in Belgrade (1976-1978). These exhibitions would usually last a day and often caused lots of provocation. Between 1975 and 1979, they performed and documented over 20 art pieces. The Group of Six Artists was influenced by their predecessors, the Gorgona Group. Overall, their aim was to change life and art and to express art freely instead of abiding by the inherited traditions of art.
In addition to their exhibition-actions, the Group of Six Artists launched the self-published magazine MAJ/75, printed in the studio of Vlasta Delimar and Željko Jerman. Eighteen issues of MAJ/75 were printed between 1978 and 1984, and the publication became an additional alternative exhibition space for not only the Group of Six Artists but other eastern European creatives as well, presenting artists such as Vlasta Delimar, Tomislav Gotovac, Sanja Iveković, Mangelos, Balint Szombathy, Raša Todosijević and Goran Trbuljak in its six-year run.