Gum bichromate is a very special photographic process. It is a way to intervene directly on an image and to give a personal interpretation with the tools of the painter and the photographer: brushes, pigments and negative. The final image is obtained by the successive superposition of several layers of gum arabic. Each of the layers is exposed and then stripped in water. Each stripping is carried out with brushes, which is a phase of creation and interpretation. It is precisely in the act of stripping that the singular character of the gum bichromate process appears. Each stripping differs from one another, which gives each work a unique characterization.