Ever wondered the reasoning behind map based visualizations becoming all the more ubiquitous today. Dashboard developers are including map based visualization in almost every project that they are engaged in today. It was not the case few years back where maps played only a minimal role and entailed more overheads to bring data as per required format and building an UI that seamlessly integrated with layout.
Actually, map based graphics are not something new that was conceptualized in the current decade. Map based data representations were available for more than a century. Have a look at the map and original content here.