Slovakian artist Július Koller invented conceptual tools to make sense (and sometimes nonsense) of life under Communist Czechoslovakia. His work aims to a constant questioning of the world and the cultural context, opening up possibilities for a humanistic utopia at unexpected places. Koller’s strategy consisted in the use of real objects, the real world, and everyday life. A good representation of this can be seen in Ping-Pong Society, a project that Koller made in Bratislava in 1970; instead of an exhibition, for a period of one month he set up a ping-pong club where visitors could play. Visitors are invited to occupy the exhibition space and experience the reactivation of Koller’s work. More info about him and some other artist can be found on Whatspace.