forms, and this gives them a stronger sense of dynamism. At the same time, the structure of the picture alternates with forms with a mass of different saturation. Here we can note that this technique reflects the concept of interval formulated by the artist. In 1914, he organized the exhibition Kiltse ("The Ring") in Kiev, together with Aleksandra Ekster, Eugène Konopatzky among others. In 1915, Bohomazov moved to the Caucasus, where he worked as a teacher and painter. In 1927, he was a founding member of the Association of the Revolutionary Masters of Ukraine (ARMU), together with D.Burliuk, V.Meller, V.Palmov, V. Yermilov and others. Bohomazov died on June 3, 1930, in Kiev. Theoretical Work & Teaching Bohomazov's theoretical work deserves a separate outmost recognition. In 1914, while living in the small suburban town of Boyarka, near Kyiv, the artist wrote a treatise called "Painting and Its Elements". In it, Bohomazov traced the genesis of the artistic form, which arises from the moment of movement of its primary element - the dot. Referring to the elements of painting — line, form, painting mass, environment, etc., Bohomazov operates with these concepts, understanding them in dynamics, analysing painting as a complex system that is constantly changing, living according to its internal laws. In "Painting and Its Elements", for the first time, rhythm is considered not only as a quantitative, but also a qualitative category, and this was a groundbreaking discovery of the artist. The treatise explains how the artistic personality translates the pace and rhythm of everyday life into the language of painting. It shows how a tranquil picture plane is filled with agitated lines and pictorial forms, with a charge of mobile energy, in much the same manner as our relaxed psyche is agitated and filled with the rhythm of lines and forms of the object which we contemplate. Rhythm has a psychological aspect: it can cause depression or elevate spirits. Many of the positions of Bohomazov's treatise anticipated the theoretical achievements of "Suprematism" by Kazimir Malevich (Vitebsk, 1920) and "Point and Line to Plane" by Vasily Kandinsky (written in the winter of 1918-19, published in 1926 at Bauhaus, Dessau). In fact, in "Painting and Its Elements", he considers how a black square on a white background is the “most perfect form”, a year before Malevich’s most famous work. It can be argued that the Ukrainian artist made a significant contribution to