Is an approach involving variety of techniques for summarizing data characteristics using statistical figures and visualizations.
https://builtin.com/data-science/exploratory-spatial-data-analysis-esda
https://geodacenter.github.io/workbook/3a_mapping/lab3a.html#extreme-value-maps
https://www.spatialanalysisonline.com/HTML/index.html?self_organizing_networks.htm