Invisible is a publishing project dedicated to professional photography, to the city and to creation. The cities that are part of Invisible share between them a long tradition of photographic production. We present the reader with the possibility of getting closer to urban events, paying special attention to the photographic ability to interpret social phenomena, which are the result of the multicultural nature of the contemporary city. We believe in the dialogue established by different looks. In this way, each new issue of Invisible turns into a monographic project on a city.