- Research more deeply about Map - Choropleth map - how to divide values into classes(colours) in the map.
- re-read the chapter about Spatial relationship
- A plethora of classification approaches are available. How Charts Work p 187 in Recognise that classes on a choropleth map function like the ‘bin’ in a histogram
- Our eyes can be attracted to the largest areas that have low density of data
- “Choropleth maps are flexible – we’ve already seen examples that present rates and ordinal (ranking) data. However, choropleth maps are generally not suited to mapping magnitude data.” - Smith, Alan. How Charts Work (p. 197). Pearson Education. Kindle Edition.