I'm very new to ArcGIS (and GIS in general), and I'd like to create a map of the Caribbean region colour coded for certain indicators. I need each island to be a different colour depending on that indicator. Would anyone be able to direct me towards resources that might help me with this?
More specific to the map you want to create, you might search for guides and tutorials on creating choropleth maps. A few examples:
Basically what you'll have to do is: