D&D 5E Is the map in the Theros book good?

[LordEntrails]

I did actually discover the cartographer is Deven Rue. Deven Rue, LYSK on Gods Of Theros/Mogis & Iroas | Dungeons & Dragons

Maybe the map goes by a name I'm not familiar with, but I could not find it for sale on his website; Cartography

 

[The Mirrorball Man]

Maybe. The map does give you a way to run an Odyssey, getting swept up on distant unexplored lands simply by having not much there. I expect a lot of people will enjoy filling in the details themselves.

Not only that, but it is fairly easy to add "Not-Persia" and "Not-Atlantis" to the world map.