After getting off to what was already an impressive start, Cory Doctorow has finally delivered the book, the one that puts him over the top as one of the rare, demonically original, challenging and gifted writers SF sees about as often as two-headed calves are born. These ranks include the likes of PKD, Ballard and Delany, artists who manage to write mold-breaking, unconventional stories that uproot nearly every preconception about what storytelling ought to do, and yet avoid being alienating or vapid and self-indulgent.
Thomas M. Wagner, SFReviews