Previous winners have included Grayson Perry, a cross-dressing potter, and Martin Creed,
whose installation in 2001 featured lights going on and off in an empty room.
The most «powerful» artist, at number 7, is the Berlin - based Hito Steyerl,
whose immersive video
installation, «Factory of the Sun,» was on show from February to September at the Museum of Contemporary Art (MOCA), Los Angeles, having represented Germany at the
previous year's Venice Biennale.