I am having trouble understanding some of the ways resources are tagged in 4.0. Here is an example (look at lines 1, 2, and 4).

All three are map collections. Two are tagged as 'monographs' and one as 'media collection.' One of the two tagged as a monograph is given the subject "Bible--Geography--Maps..." and the one tagged as a media collection is given that subject as well. Then the other monograph is tagged as an atlas.
First, I really don't understand the differences. Aren't they basically the same type of resource? Trying to find resources is a challenge that I find frustrating at times. Unless I know the name of the resource, it is not intuitive to me how to find what I know I have.
I know I could type 'maps' in the search box and find these, but would I ever think to find them under "Bible--Geography--Maps"? Yikes. What is wrong with "Maps" or at least "Atlas".
(Shaking his head)