Immanence is an autobiographical book that presents the author's multiple questions about photography, about its possible power to represent the invisibilities that accompany images, about the subject to be photographed (what, how to photograph?), about the subject-photographer (what is a photographer?), about life and the new "life-possible" instituted by the camera, about memory, about time that is constantly transformed into the past, about the process of making the image in the process of being made in the process of being made. ), on life and the new "life-possible" established by the camera, on memory, on time that is constantly being transformed into the past, on the process of making the image in the darkroom, and finally on the (lost?) materiality of analog photography. This logbook tries to synthesize the eye, the mind and the hand of the photographer, to implement the very presence of the author to make him the main subject.