Since Victorian times, London's Underground has made an extraordinary contribution to the economy of the capital and has played a vital role in the daily life of generations of Londoners. This wide-ranging history of the Underground celebrates the vision and determination of the Victorian pioneers who conceived this revolutionary transport system and the men who tunnelled to make the Tube. From the early days of steam to electrification, via the Underground's contribution to twentieth-century industrial design and its role during two world wars, the story comes right in to the present with its sleek, driverless trains and the wrangles over the future of the system.