I'm up to ch. 16 of Penrose's Road to Reality. A group of signatures is falling out, the spine's busted, and I'm in danger of losing pages. What's worse, it's an autographed copy (it was warn already when a friend of Penrose's borrowed my book to prepare for meeting him in Texas and then surprised me with the autograph), so I think I need to figure a way to repair it. I'm now in a hotel room in Princeton, NJ, book in suitcase since I can't quite put it down for a whole week. I'll try to keep it together for the week, at least.