* Stacking coins to represent many overlapping points http://blog.cartodb.com/stacking-chips-a-map-hack/
* An essay from Mark Monmonier about critical cartography https://www.researchgate.net/publication/290012743_A_Critique_of_Critical_Cartography * Roundabouts world map, at Europe they are definitely a plague https://www.mapbox.com/bites/00205/#9/48.8699/2.3346 * About the simplicity of lines and how many things you can do with them https://mapzen.com/blog/lines * Map of incidents on power supply caused by animals http://cybersquirrel1.com/ Raf
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