Hallucinations for book and paper authorship are some of the most convincing. Subject matter typically matches the supposed author, and the titles are always very, very plausible. Because they are just generating text that statistically would make sense, LLMs are masters of "sounds about right." There's no list of books inside of the machine.
aifaq.wtf
"How do you know about all this AI stuff?"
I just read tweets, buddy.