Cached US Kindle giveaway: 10 copies of @dianeduane's Spock's World, which is -- to me -- *the definitive* Star Trek book. It is so much so that apparently I thought a scene from it was in a Star Trek movie. Any depiction of Vulcans that does not use this book as the reference is just flat-out WRONG. Also it's a fun book. I highly recommend it.
This is going to be a fine book to read today. Just read it, enjoy it, and think about it and nothing else.