My wife bought me a copy for Christmas, I started reading it on Christmas day, and could not put it down.
It is a wonderful piece of speculative writing about architecture, and is beautifully illustrated. Anyone who has ever thought about why we live in the places that we do, should find this fascinating. It is also surprisingly literary in its terms of reference, if you enjoy JG Ballard, Borges, or Invisible Cities by Italo Calvino, then you will love this.
I have been reading the popular blog for some time, but even so, I was surprised at just how good this book is. This is not just a blog transmuted into a book, it is a substantial and thought provoking book with a deep sense of humour. I cannot think of another book that I have read recently with more ideas in it.