I love this quote:

>“Books... are like lobster shells, we surround ourselves with 'em, then we grow out of 'em and leave 'em behind, as evidence of our earlier stages of development.”

>― Dorothy L. Sayers, The Unpleasantness at the Bellona Club

If you browsed my bookshelves, you'd find proof of that.

As you age, your tastes change. You'll likely still keep a few old favorites that you reread. But you'll leave the rest behind.

EDIT: You might try historical fiction. Still fiction, but ones that accurately portray a very different point in time. Honestly, I've learned more about history from reading fiction than I have from reading history books.