This dissertation attests to the meeting of two men, Jules Maciet and Albert Kahn. These two figures have both captured the power of the image. The former considers it a precious tool for creation, while the latter uses it as a means to capture the real in a world in constant movement. Struck by the globalisation that has defined their era, these two men approach their projects with an encyclopaedic method, becoming one with the world around them. This dissertation was constructed around this investigation work with institutions, with a view to understanding how the composition of a visual culture addressed the issues of this ever-changing society.