Puni continued his formal training in Paris in 1910–11 at the Académie Julien and other schools, where he painted in a derivative "fauviste" style. Upon his return to Russia in 1912, he married fellow artist Kseniya Boguslavskaya, and met, and exhibited with, members of the St Petersburg avant-garde, including Kazimir Malevich and Vladimir Tatlin. He made a second trip to Paris in 1914, returning to St. Petersburg in 1915. At this point, he began painting in a Cubist style reminiscent of Juan Gris. In 1915, Puni, (Aleksandra Ekster, Liubov Popova, Ivan Kliun, Ksenia Boguslavskaya, Olga Rozanova, Nadezhda Udaltsova, Nina Genke and others) formed Supremus, a group of artists dedicated to the promulgation of Suprematism, the abstract art movement founded by Malevich, and first exhibited at the 0,10 Exhibition. Malevich and Puni co-authored the "Suprematist Manifesto", published in 1916, which proclaimed a new, abstract art for a new historical era.