Variations in the world's population density have been mapped in this stylised visualisation, created by Derek Watkins (via Flowing Data ). Echoing the work of renowned American geographer William Bunge , he has created a visualisation which - rather than overlaying data points on a map - creates the map itself out of data. For more information on how it was made, see this explanatory post . Use the slider to explore the distribution of different population densities.