Very geeky/nerdy book chock full of references to stuff I love. Great story, though if there's one thing I would nitpick, is that sometimes seeing so many geektastic references piled together in certain parts of the book almost seemed like the author was trying to add them for the sake of adding them, as if he were checking off a list. But OTOH, Halliday was obsessive about this stuff, so it makes sense to the story to do so. A part of me just felt ever so slightly annoyed by the sheer amount of geeky references. But it certainly wasn't a dealbreaker. Highly recommended reading for children of the 80s. :-)