Intervention Art is art which enters a situation and attempts to change the existing conditions there.
Intervention art may attempt to change economic or political situations, or may attempt to make people aware of a condition that they previously had no knowledge of. Since these goals mean that intervention art necessarily addresses and engages with the public, some artists call their work "public interventions". For example, Alfredo Jaar is one of the most famous artists who uses the strategies of intervention in his work.