The letters have been placed side by side or superimposed on photographs of museums. But since interminable lists of acronyms are extremely boring to ponder for any length of time, even if they are displayed in an attractive range of bright nursery colours, one inevitably starts to read the occasional skewed word: CAFKA (one might indeed start to feel like Joseph K trapped in a bureaucratic world of indecipherable codes) or, perhaps even more aptly, CAC.