Between 1886 and 1903 booth surveyed the life and labour of the people in London, moving street to street interviewing the residence. The Booth study resulted in, amongst other things, colour-coded maps of London ranging from yellow to black, with blues, pinks and reds in-between. These colours represented the income and social positioning of the city’s inhabitants, from the lowest class, controversially categorised as the ‘Vicious, semi-criminal poor’ to the less harshly judged ‘Upper-middle and upper classes. Wealthy.’