I had reason to Google the word "offprint". And saw this.
And thus it came to pass that might abstraction begat relation begat social_relation begat communication begat expressive_style; style begat writing_style; literary_genre; genre begat prose begat nonfiction; nonfictional_prose begat article begat offprint, reprint, separate.
Right! Obvious classification really.
As we say in the old country - whatever yer havin' yerself.
This one is more of a giggle : Borges' Animals. When I first saw that list I was in convulsions by the time I got to number 12. You have been warned.