LONDON.- Tate Modern will present a major exhibition of work by the celebrated artist Francis Alÿs (born Belgium 1959). Using diverse poetical and allegorical approaches, Alÿs explores political subjects such as contentious borders and economic crises. The exhibition will present iconic works alongside new pieces which have never been shown before in the UK. Working in a variety of mediums including painting, video projection, animation and sculpture, Francis Alÿs is one of the most important artists of his generation. Francis Alÿs’s work often starts with a simple act, either by him or others, which is then documented in a range of media. Working in urban settings and dramatic landscapes, he creates interventions which frequently address a historical