Bad GIS Map

This is a bad map because it lacks all the qualities of a good GIS map design. This map lacks any meaningful labeling, has no title, no idea what the map maker was attempting to display. Overall, no substantial map information was shown on this map; in other words the was no "Concept before Compilation.

Good GIS Map

The title of this map is
"Predictive model of Loa loa prevalence for Cameroon overlaid with the observed prevalence data”, from Thomson et al. 2004."

This is a good map because it is a well designed presentation of interesting data reflecting actual Loa loa endemism on top of predicted endemism in Cameroon (a west African country)

The makers of the map showed clear, detailed, and thorough labeling with data variation clearly shown; explanation of the data were written out on the map itself.