Sergey Antonovich Kravchenko is a psychologist, psychotherapist, artist, and author of over twenty books. Building on G. M. Nazloyan’s mask therapy, he developed his own method combining art, psychology, and altered states of consciousness. His approach helps people rediscover their «own face» and restore wholeness. He also shares insights and techniques on his YouTube channel, «Psychologist Sergey Kravchenko».