A lot of the structures generated by RecurrentComplex have books in them, with different stories, if I'm not wrong.
I wanted to know who wrote the content of the books, because it's really something beyond only modding.
Thanks

The books are randomly generated - currently there are two main types, generic books (just title + author) and poems. I do sort of plan on adding more types, just because it's an interesting diversion to make, but I don't know when, yet.

The code for generating poems is here: https://github.com/Ivorforce/RecurrentComplex/blob/master/src/main/java/ivorius/reccomplex/random/Poem.java

Apart from the language constructs, random variables and paragraphs, they are separated into themes consisting of certain words (which you can theoretically add more to without much of a problem), found for example here:
https://github.com/Ivorforce/RecurrentComplex/blob/master/src/main/resources/assets/reccomplex/poemThemes/war.txt

So that's pretty much how it works. I technically made up the content and concept, but the books themselves are uniquely and procedurally generated. Most of them are pretty random, but I have to confess I actually liked one or two in the past, too, haha.

You don't see much of this in modded Minecraft.
The contect can sometimes be funny, sometimes..very creepy.

I'm glad you feel that way. It's definitely fun to work on this kind of stuff, too.