“Our aim is to provide unbiased information about London's social, environmental and economic issues. “These maps are like fancy pie charts, and if something is twice the size of something else it is obvious. We just want to spark a debate about the differences in one big city.” Professor Danny Dorling London called me on Thursday this week, and I went down to the RGS to meet with Ben Hennig. Ben and I are working on some educational materials for a project called LondonMapper - a website which officially launched today , funded by the Trust for London. The educational materials are being funded by an Innovative Geography Teaching grant that we have been awarded by the Royal Geographical Society. Ben's maps will be familiar to many from his work on WorldMapper with Danny Dorling and others from Sheffield University. Ben now works at the University of Oxford , still with Danny Dorling , and LondonMapper is one of several exciting projects that he is workin