Hmm...
I'd say a book that changed me was The wind up bird chronicles by Murakami.
I already told the story of how i read it as 11? year old (Something around that, i cant remember well)
Sure, i read before that, but it was mostly mythology and kids books, but here i took a peek into the "adult" books so to speak. If you know the book, you get what im talking about.
It changed me cause i saw this whole other world i didnt know existed at the time. It showed me how adults lived their daily life (for the most part) and made me interested in other cultures. So it opened my mind
After ten years, i dont think the book is anything special (although i need to reread it), but i thank it for giving me more life experience