‘Photography is one of the nuclei of ‘contemporary art’; what if it were the heart? Such is the main problem addressed in this book. Challenges for both contemporary art and photography. It is that, in 40 years, photography has changed its status (situation); the small image ignored or observed from above has been recognised as a work of art - its aesthetics is put in place, its musealisation too. Moreover, with the digital and the internet, it makes us change the paradigm. One more reason to ask ourselves if she is not the heart of contemporary art. The analysis of works of contemporary art, and therefore of photography, will be one of the entries in the problematic and will also allow a better approach to the subject.