Not one book - but a series. The Encyclopedia Brittanica. (That's right, the old-school hard bound set of books taking up an entire shelf.) My 3rd grade class

Not one book - but a series. The Encyclopedia Brittanica. (That's right, the old-school hard bound set of books taking up an entire shelf.) My 3rd grade class had a set, and I devoured each one. They turned me into a nerd thanks to a teacher who told me to never stop reading.