I'm not sure how contact a person who has editorial clout over 2312... I've found a couple of typos to date in the hardback copy sold in the UK, and thought you might like to know if you are thinking of re-publishing.
1) Page 47 - 7th paragraph - 2nd line - insert way after their.
2) Page 64 - first paragraph - Io is not the innermost moon of Jupiter, it is however, the innermost of the big four moons of Jupiter. A couple of words to clarify perhaps?
PS I don't go looking for these things - these are the ones that jumped out at me.
Please delete this comment once you've made the appropriate notes.
Best Wishes, Rosie