His antennae up, Koren is a gently acerbic critic of a cultural scene that seems to cry out for his graphic commentary. As a longtime observer of the art world, he is a sharp-penned, gently mocking critic of a scene that seems to demand his graphic commentary. From the stylistic winds of the sixties and the graphic art of the seventies to the pretensions of collectors and the conduct of museum directors and museum visitors, Koren has followed that world with amusement.