Szczuka and Żarnowerówna were co-creators of the "Grupa Kubistów, Konstruktywistów i Suprematystów Blok" (Cubists, Constructivists, and Suprematists group), the first Polish constructivist artistic group in Warsaw. Żarnowerówna co-edited the group's magazine, "Blok", "Czasopismo Awangardy Artystycznej" ("Blok, The Magazine of Artistic Avant-garde"), as well as Szczuka's magazine, "Dźwignia" ("The Lever"), from his death until July 1928. Both magazines serve as the primary source of information about her work as most of her original works are lost. Blok disbanded in 1926 due to artistic differences amongst its members. After Szczuka's death in 1927, Żarnowerówna completed many of his works, including the cover for Anatol Stern's (1899–1968) poem "Europa" in 1929.