The photographic intervention “Invisible” realized by the Master in Photography and Design students from ELISAVA (Barcelona School of Design and Engineering) in 2016 coincides with the 5th anniversary of “Las Arenas” shopping mall. It reflects on which are the centre’s characteristics, how it works, and, above all, who are the people that work behind the scenes and the surfaces of consumption, in the very entrails of the mall which are invisible for the visitors. The intervention proposes a view into this parallel reality of “Las Arenas” and as such open the perception towards the complexity of it to the visitors, who, at the same time, are also part of it.