I don't think it was an exact book that made me want to be a writer. I've been making up stories and characters and stuff since before I even knew how to read or write, and at first it was just a hobby, but then when I was about thirteen or fourteen, I realized how much I really loved it and wanted to make a career out of it. Actually, if I'm being completely honest...it was fan-fiction that made me want to be serious about it.
Which probably sounds stupid, I know, but I was reading some pretty good stuff online (back when Quizilla didn't suck), and it all totally inspired me, and that was when I knew that this was what I wanted to do for the rest of my life. Books definitely helped on that front, but it was never a specific one that made me have this huge epiphany or anything. :3