I know next to nothing about GIS. I've thought about taking classes, though.
I guess the question I'm really trying to ask is how you were able to convert that map to PNG.
It's not that difficult to learn how to use the free MapWindowGIS to make maps. I don't think it requires classes. I can give a detailed tutorial, if you wish.
You can convert a shapefile into an image file using
MapWindow GIS by adding the .shp file as a layer, then selecting Edit from the top menu and Export>Map from the drop-down menu. My older version won't save as a .png, but will save as a .jpeg or .bmp file. Or you can
download the free QGIS, open the .shp file as a vector layer, then select Project from the top menu and Save as Image from the drop-down menu. In both instances, you might have to change the shape color to white by right-clicking on the layer name, and changing the color options in the drop-down menus.
I'm sure there are other ways to convert a .shp file into a .png file - as I said before, just Google "shp to png".