Artist Liu Bolin, also known as the ‘Vanishing Artist’, is painted by an assistant as he makes himself look exactly the same as the wall of an old temple in a Hutong in central Beijing August 26, 2009. Liu started his optical illusion artworks of becoming ‘invisible’ more than four years ago, describing them as a form of political protest and his way of ‘hiding from the authorities’. REUTERS/David Gray (CHINA SOCIETY IMAGES OF THE DAY)