Following different angles of attack, but connected by the same theoretical thread, the essays gathered here are intended to elucidate the conflicts of the visual that have crossed the century that has just passed and is prolonged in the one that begins. The question of the image in its aesthetic dimension, but also political, philosophical, theological, has long since condensed a multitude of often burning and conflicting issues. But the previous century was, from this point of view, explosive. Shaken by modern art with its Cubist disfigurements and non-figurative escapades, disconcerted by psychoanalysis with its drilling in the depths of dreamlike images, upset by the novelty of the mechanical means of grasping the appearance of things and beings (photography, cinema), the past century has seen a complete overhaul of Greco-Roman and Renaissance visuality. In a few decades the visual regime has moved into a new era.