This project explores the use of Carto as a tool for working with spatial data. The presentation does not stop at introducing the software but goes further into the conceptual foundations of mapping. It highlights the importance of choosing and designing a base map as a first decision, since projection, labeling, and style can significantly influence perception. From there, the focus shifts to the data layers that sit on top of the map, showing how these layers interact with the base to form meaning. The project also unpacks typical questions of geography such as reachability from a point, regional clustering, and comparisons between countries or regions without relying on area size. Finally, it addresses how map-based visualisation differs from general data visualisation because position is already defined by geography, limiting the available encoding channels.