This poster was commissioned in 1987 as part of the Art on The Underground series. The campaign was established the previous year as a conscious attempt to re-establish the London Transport poster tradition. Tate Gallery by Tube, by David Booth of the agency Fine White line, was the most popular of the series and reproductions continue to sell all over the world. Harry Beck's design for a diagrammatic Underground map, which is still used today, was first published in 1933. Booth's witty adaptation of the diagram presents the principal Underground lines in paint, presenting a clever play on the word 'tube'