Action art is a discipline that includes — but is not limited to — performance, public intervention, relational projects, body art, happenings, and furtive action. This rather “undisciplined” art form can be characterized by the essential — though not always visible — presence of the artist in a typically ephemeral artwork that unfolds in the “here and now.” Be it orchestrated or improvised, subtle or direct, action art is a thriving and sometimes provocative and uncomfortable aspect of contemporary visual arts culture. It encourages us to reflect on our bodies, behaviour, culture, and contemporary societies.