What books live in your mind library and why?

I’ve just finished Things Fall Apart.
Wow. I don’t have a detailed review to share with you as it’s one that’ll take a while to process.
What I can say about it is that I reckon it’ll live in my mind library on the same shelves as Trumpet, Remains of the Day and Reservoir 13.
Why?
Because none of these books have rip-roaring plots. Each one is still a satisfying narrative because there are changes and there are arcs, but you wouldn’t call them pacy.
I had a lively debate with friends about this in the pub the other Friday.
Yeah, I like plot-driven stuff. I read a lot of it. But I also have a lot of time for books that leave me with more of a feeling.
It’s ages since I read The Remains of the Day, but I still ponder it.
It’s over three years since I read Reservoir 13, but I still find myself thinking about the village and its characters.
I read Trumpet last winter and it moved me. I still feel it.
And I reckon that Things Fall Apart will do the same thing.
Did I enjoy it? If you know what happens in the book, you’ll understand why ‘enjoy’ isn’t the right word.
As I said, it’s one that will take time to process. So off it goes to join other books that live in my consciousness library.
Mind library. Consciousness library. Have I stolen this from Sherlock’s mind palace concept?
❓What books live in your mind library and why?