Honestly I think it's "1984" by George Orwell. I read it when I was quite young so it stuck with me. Otherwise I think "Just for fun" by Linus Torvalds and "The

Honestly I think it's "1984" by George Orwell. I read it when I was quite young so it stuck with me. Otherwise I think "Just for fun" by Linus Torvalds and "The Cathedral and the Bazaar" by Eric S. Raymond. There are other books like anything by H.P. Lovecraft, Kevin Mitnick's books and "The Cuckoo's Egg" by Clifford Stoll that has also stuck with me and changed how I think about things.