This is a rather fun collection of maps reminiscent of a school geography atlas. You know the ones, where you can see all manner of different information about the same bit of land - political boundaries, topology, population density, produce and so on. Having this sort of information about a campaign world helps to bring it to life on so many levels.
Here there are some seven maps of the same area - Mhoriedh - to examine. The first is a plain geographical one, the second is the same but with the features labelled. The third has the regions marked out and named. Then there's one with all the settlements marked and named.
The next one is labelled The Great Plague. I'm not sure what this shows, is it which bit was affected in which year, or numbers of people who died? That's followed by one which shows the paths of three 'nomad invasions' each spreading out from a different origin to assault different parts of the region.
The final map shows sub-divisions into different areas - possibly a pre-cursor to some more detailed maps of each.
It's interesting to see these different maps of the same region, but slightly hard to determine how to use them. If you know the names and locations of settlements, you probably are in a position to name the rivers (and other features) and the regions as well. Both the plague and the nomad invasions maps are probably best for the GM's use, he can use them to describe the spread of plague or invaders over the course of time, working out how they affect wherever the characters are. But it's an interesting concept and one worth exploring further.