Sketch for a Portrait of Ivan Klyun 

"Sketch for a Portrait of Ivan Klyun" is a preliminary drawing by Kazimir Malevich, a prominent figure in the Russian avant-garde movement. Characterized by a stark simplicity, Malevich utilizes geometric shapes to represent the features of his subject, Ivan Klyun, a fellow artist and member of the Suprematist movement. This sketch, executed in black lines on a light background, exemplifies Malevich's exploration of abstract form and his rejection of traditional representational art. The single, large eye and geometric structure of the face speak to the artist's fascination with reducing form to its essential elements, showcasing his influential approach to portraiture.