I will correct you on this one...
I taught reading analysis all my life... 😁😊
If you discover a great book and a deep one, it is like pulling on a thin wire attached to a thin cord which itself is connected to a thicker cable and so on...
In any very great books there are notes and citations from other great books that this genius writer we have discovered will himself present to us by inviting us in his own commented bibliography in footer notes... ( one of the most unrecognized important part of a book is footer notes)
It is the way very young i discovered many hundreds geniuses known or not so well known by myself...
Generally though bad or not very great writer or philosopher dont have great or very original references ...
A tip : look especially not well known author also in any bibliography...
If you discover only ONE great book ,you will discover many other great one...
For sure my observations is more apt to be used in science, philosophy, and other non fictional books...
My problem with books is that 95% are crap.
Even if you have access to a large library it can still take a lot of precious time to find something that connects.
A bit like searching for new music.
There is good stuff out there but you do have to wade through a lot of derivative dross.
Even worse for movies.
I guess almost everyone is chasing the dollar and following the formula.
Thankfully not everyone though.