I can only think of about three (at the moment) that truly represent some of my mindset:
Frankenstein: I respond very strongly to the book's poignant philosophy, that people, especially bad ones, are not born evil; it is their surroundings and their treatment by their fellow man that makes them into monsters. Plus, there's tons of child-abandonment metaphors and jilted-lover analogys in this as well, both things that I passionately disagree with.
Harry Potter and the Deathly Hallows: Ah, what to say about this glorious novel? One of the most emotional reads ever, for me personally, because it not only changed my perceptions of certain characters, but also said characters' beliefs and morals. I wish I could go into more detail about how powerful this book was, and why it connects so strongly with me, but I might be forced to unleash spoilers for those crazy enough-sorry,
unfortunate enough
-to have not yet read it.
Series of Unfortunate Events (the whole damn thing): This one took me kind of a while to think of, but as I ponder it, it becomes more clear that this series kind of perfectly epitomizes my general look at life. Basically, I tend to view existence as a series of unfortunate events; a terrible, wrenching, vicious beast that will give you flowers just as soon as kick you in the nards. And yet, I recognize that there are good things in this world, and that they are worth fighting for, and therefore life is, in the end (and trust me, there WILL be an end), worth the hardship. I think that's what Lemony Snicket was trying to get across with his series, and does a magnificent job of it.