published in 2005, and Fire and Steam, the first major new history of the railways in Britain for 30 years. More recently, Blood, Iron and Gold, a history of how the railways changed the world, was published in October 2009 and Engines Of War, on how the railways transformed modern warfare was published in late 2010. In 2012, he published The Great Railway Revolution on the history of the US railroads, and also in 2012 an ebook version of On the Wrong Line: How Ideology and Incompetence Wrecked Britain's Railways, an updated version of the earlier Broken Rails. In 2013, he published To the Edge of the World, a history of the Transsiberian railway. Subsequent rail books include Railways and the Raj, a history of Indian railways and The Story of Crossrail. He has also written two polemics: Are Trams Socialist? describes how Britain's transport policies have always been orientated towards favouring the motor car over public transport and Driverless Cars: on a road to nowhere suggests that the hype around this technology is greatly exaggerated. He has also written a book on the abuse scandals in children's homes, Forgotten Children, published in 2000, and has written extensively about housing issues and local government. Politics London Mayoral election, 2016 In September 2012, Wolmar announced his intention to seek nomination for the Labour candidacy at the 2016 Mayor of London elections. The WolmarforLondon campaign launched in 2013 with Wolmar chairing a panel on "One London" with Nick Raynsford, then MP for Greenwich and Woolwich, Simon Birkett, Founder and Director of Clean Air in London, Vidhya Alakeson, Deputy Director of the Resolution foundation and Councillor Lise Thorsen, Lead Councillor on Sustainability on the Copenhagen City Council. He held a second conference in June 2014, at The Exchange. Speakers included Neal Lawson, Chair of Compass and Professor Tony Travers LSE. Later he took part in the Labour Party Mayoral hustings at Manchester in September 2014 and unveiled plans to pedestrianise Oxford Street with boosts to business and the environment. Described by The Guardian as "the most extensive grass roots campaign", one poll put Wolmar in second place, with policies called Lifeblood for London, Putting a Roof over our Heads, Caring for the Capital's Well-Being and Hungry for Change. Wolmar jokingly encouraged newspapers to print an untrue rumour that he had been press officer for a Maoist slavery cult, saying, tongue-in-cheek, that it would