In ‘A short video about Tate Modern’, I give an account of an experience that I had in October 2003 at Tate Modern in London; and I introduce ‘A piece of work’ – the gallery intervention/drawing that I developed as a result.The video is one in a series of recent works in which I have sought to trace critically the visibilities and invisibilities, appearances and disappearances that structure and condition the public sphere and the public record.‘A short video about Tate Modern’ locates a ‘frontier space’ in our public culture – by which I mean a place and a moment when people, events and activities come into and go out of sight.