Equal Population Cartograms

The maps used here are actually equal population cartograms. Here's an explanation, taken from the book People and places, by Danny Dorling and Bethan Thomas

An equal population cartogram is part map, part graph: it is a map projection which attempts to keep areas together which neighbour each other, and the overall shape and compass orientation of the country roughly correct, while simultaneously ensuring that every area is drawn approximately in proportion to it's population. On the cartogram each individual is given roughly equal weight, the variations within cities are revealed, while the variations in the countryside are reduced in size so as not to dominate the image and divert the eye away from what is happening to the majority of the population

In this case, as Parlimentary Constituencies are of roughly equal size, we have used the simple (but flexible) Universal Data Map cartogram developed by Danny Dorling and Helen Durham.

Department of Geography, University of Sheffield, Winter Street, SHEFFIELD S10 2TN, UK Location Maps Email: Geography@Sheffield.ac.uk Tel:  0114 222 7900 International calls: +44 114 222 7900 Fax: 0114 279 7912 International calls: +44 114 279 7912