what are books that were so deep or meaningful you still think about months to years later?

often times when i read a book, i will forget even weeks later when i pick up the next one. what are the most memorable, meaningful books you’ve read? i’m truly looking for books that are thought provoking, maybe even rooted in truth, and interested to hear what yall say!

for me, the nightingale and the britney spears memoir are books i’ve never forgotten about. i guess i really like feministic books. that make me cry. and make me really think.