So I'm wondering if there are any good in-game (any TES game, I have them all) sources that talk about beast races (Khajiit and Argonians) and their lore: their origins, religion, history etc.

We seem to get slammed in the face with lore about the men and mer, but the history of the beast races and their homelands has been mysteriously absent from my play-throughs (unless I just didn't look hard enough or talk to the right people.)

So, does anyone know of in-game sources of information on these races? I know a lot of you can just tell me their lore, but I'd rather know where I can find the original sources so I can read them for myself.

Mixed Unit Tactics (I think is the name) for Khajiit.

In game, there's:
http://imperial-library.info/content/skyrim-argonian-account, which is an adventure story set in Argonia.
http://imperial-library.info/content/words-clan-mother-ahnissi-her-favored-daughter-0, which is a Khajiiti creation myth.
http://www.imperial-library.info/content/ahzirr-trajijazaeri, which is the philosophy of a Khajiiti revolutionary group.

Out of game, we have the http://imperial-library.info/content/pocket-guide-empire-and-its-environs-first-edition and http://imperial-library.info/content/pocket-guide-empire-and-its-environs-third-edition PGE's sections on the provinces, and lore notes from http://imperial-library.info/content/infernal-city-lore-notes and http://imperial-library.info/content/lord-souls-lore-notes.

There was http://www.imperial-library.info/content/argonian-compendium, which is litter with a bunch of reference of the Argonian left and right from many lore books and ingame text.

The official novel, The Infernal City, has some good stuff about Argonians too.

Neat, I hadn't seen that before, thanks.
I always loved that book. The Khajiit are always awesome, and that's the best example of them being really cool cats.
Love it so much.

That's my favorite passage as well. And pretty much the way I live my life, even before I read that particular book.

I'm a bit of a hedonist.

I thought the ES novels added a lot of good stuff in terms of Argonian lore. Now we just need Khajjit lore to be expanded
As for in-game sources, I can't really think of anything besides those that were already listed.

Thought of another Khajiit: the http://imperial-library.info/content/tale-drozira. It's not as directly applicable as the others, but interesting none the less.

http://imperial-library.info/content/interviews-3-booksellers is a great interview about Khajiiti issues. There are also a few interesting snippets on both them and Argonians in the developer post archive, specifically those of http://imperial-library.info/content/interviews-3-booksellers, http://imperial-library.info/content/forum-archive-mark-nelson, and http://imperial-library.info/content/forum-archive-gt-noonan.

Posts deleted as off topic. The OP asked a question, please do not derail the thread with personal squabbles.

Wikia have alot of information on them...and summaried.

Infernal City and Lord of Souls also has some info about argonians.