Why do you sign your maps cartographer 5th class?
That's part of the story. Dispatches from a Cartographer is a series of maps, like a graphic novel or comic book, where a (fictional) guy called Larithas Stone travels the (fictional) world on behalf of the (fictional) Cartographers' Guild, making maps for their (fictional) future atlas. Since I make maps for the sheer pleasure of doing so, and not for RPGs or fantasy books, this gives them a bit of purpose. The 5th Class thing is simply because, in that universe, Larithas Stone is a 5th Class cartographer according to the rules of that guild. Although in my opinion this is the best of my maps, check out the others for a bit more of the context - they're all the same world.