Russian Avant Garde, Giorgos Kostakis, George Kostakis, Costakis Collection, Kostakis Collection, State Museum of Contemporary Art, Lazariston Monastery, Moni Lazariston, Constructivist movement, Kazimir Malevich, Vladimir Tatlin, Vasilii Kandinsky, El Lissitzky, Liubov Popova, Olga Rozanova, Nadezhada Udaltsova, Aleksandr Rodchenko, Solomon Nikritin, Ivan Kliun, Gustav Klutsis, Ilia Chashnik, Boris Ender, Aleksadr Drevin, Ivan Kudriashev, Antonina Sofronova, Konstantin Vialov