Ukrainian Peasants at the Market (recto); Untitled (verso)

Alexander Konstantinovich Bogomazov or Oleksandr Kostiantynovych Bohomazov was a Ukrainian painter, cubo-futurist, modern art theoretician and is recognised as one of the key figures of the Ukrainian avant-garde scene. In 1914, Oleksandr wrote his treatise The Art of Painting and the Elements. In it he analyzed the interaction between Object, Artist, Picture, and Spectator and sets the theoretical foundation of modern art. During his artistic life Oleksandr Bohomazov mastered several art styles. The most known are Cubo-Futurism (1913–1917) and Spectralism (1920–1930).

Russian Empire