Melia, the whole galleys question is another "It depends." I mostly stuck to nit-picky things as Tas mentioned but we did make a few bigger changes -- added a sentence, there was a sentence missing, changed a description -- and there were a LOT of these nit-picky things (I have a list on my other laptop -- I was very anal about the whole thing, which if you saw the state of my house, you would never guess about me).
But my publisher didn't have an issue with that and in fact they encouraged me to change what needed to be changed, with the idea that at this point they would be mostly small changes and corrections, not wholesale rewrites. Her attitude was, "this is your last chance to fix what needs to be fixed," even though it kind of wasn't, as it turned out. I mentioned this I think but after the proofer went through another time post-galleys (this thing has been gone over so many times by these guys, it's very comforting!), she had some questions for me to answer while I was in Shanghai -- and as far as I know the book had already gone to production. I found a mistake in the acknowledgments in the ARC (not mine) and was told to flag everything I saw (though at this point we are all assuming there isn't much). And I wasn't charged anything (at least as far as I know, so perhaps I'm in for a surprise
). So I would ask your editor.
