I want to see all of the official Elder Scrolls maps that exist, if you could be so kind as to direct me to them. I occasionally see fan-made maps pop up on the internet, so I'm wondering what the legitimate Tamriel and Nirn maps look like, and I want to avoid the confusion by letting you experts show me only maps sanctioned by Bethesda. I also see supposed maps of Akavir from time to time, was there ever an official map done for Akavir?

There was never an official map of Akavir.

Anyway, these are the 100% official maps I know of.
http://www.imperial-library.info/sites/default/files/gallery_files/nenctamrmap01.gif (Note: I believe this is based on a composite of several official maps with the same artstyle)
http://www.imperial-library.info/sites/default/files/gallery_files/tamriel_westmap.jpg

Also of note is this sprite from Daggerfall, which shows a continent southwards.
http://www.imperial-library.info/sites/default/files/gallery_files/df_globe.gif

There are better maps. This has Thras, Yokuda and Pyandonea. We have no maps of Atmora or Akavir. This map shows every land we have mapped so far.


http://www.imperial-library.info/sites/default/files/gallery_files/politicalmapqb8.jpg

That's a fan-made map though. The OP specifically asked for the official maps.

I believe the scale on that one is slightly off due to how it was composited, this is the http://www.imperial-library.info/sites/default/files/gallery_files/races_fullmap_center.gif of that map.

You can scroll through http://www.imperial-library.info/content/cartography, all official maps are labeled as such.

I always rely on http://www.imperial-library.info/sites/default/files/gallery_files/cyrodiillargelowrescr7.jpg

It's just ixiom's map but color coded.

There's also the East Empire Shipping Map that can be found in-game in Skyrim.