"At a time when so many people are disillusioned about politics, this book reminds us that real change is possible - as we've seen with the impact of successive London mayors. From the congestion charge to Tech City, London has evolved dramatically over the past two decades - and London's Mayor at 20 tells the story of this transformation in a brilliantly human and compelling way." - Rohan Silva, former senior policy advisor to Prime Minister David Cameron "The London mayoralty was the most radical innovation in the capital's government since the LCC. For the first time the political life of the metropolis was embodied in one personality. This study of its creation, strengths and weaknesses is essential reading for anyone who cares about London. It should roll the pitch for a second stage of reform to the capital's transport, policing, education and health. Where I think some regional mayors are of dubious permanence, London's is irreplaceable." - Simon Jenkins, journalist and author of A Short History of London