Vygotsky's preface to A. Bykhovskii,'s book Graphika is among the prefaces he wrote in various domains of art during his career before entered psychology. He offers readers the key (taken from Hans Christiansen) to looking at and understanding the special character of Bykhovskii's creativity. Vygotsky emphasizes Bykhovskii's style of using lines in a dualistic way thus creating an original style. Vygotsky analyzes this characteristic using paintings from Bykhovskii's career.