Kateřina Šedá (1977, The Czech Republic) explores social systems and values within her home country; previously working with inhabitants of her village and family members, to develop a system or series of actions for participants to enact. For example, to create Over and Over 2008 Šedá asked 40 of her neighbours for permission to cross the fences between their homes. She then invited them to Berlin, where they scaled replicas of the fences, bringing people together through an object that normally divides them, while also addressing the history of Berlin.

Artur Zmijewski (1966, Poland) investigates power politics and human behaviour, in both an ideological sense, and through relationships formed between the participants within the context creates within each project. For example, to create Them 2005 Zmijewski invited four small groups from different factions – elderly Catholic ladies, the neo-nationalist Union of Polish Youths, a group of Jewish teenagers and some young left-wing activists – and asked them to paint something that symbolised their respective beliefs. He then invited the participants to change each others works, resulting in a heated and illuminating exchange where the symbols were slowly destroyed.

Tate Modern, Starr Auditorium
£8 (£5 concessions), booking required