This document discusses exploratory spatial data analysis (ESDA) and the software GeoDa. It defines ESDA as the visualization and exploration of data that takes geographic location into account to identify patterns like clusters and outliers. The document explains that GeoDa is a free, open-source software for ESDA developed by Dr. Luc Anselin. It can be used to create choropleth maps, histograms, scatter plots, and identify clusters through tools like box maps and multivariate LISA. Examples using health and demographic data from Rwanda are provided to demonstrate GeoDa's univariate and multivariate analysis features.