what revisions matter?

Please, please come to the Layton Barnes and Noble tonight from 6-8! I have NEVER done a solo book signing before and am terrified I will be there all alone for two hours while the book staff stare at me pityingly. I will bring fabulous snowflake cookies to go with the Snowbird on the cover that is also fabulous. And also, I bake well.

I am thinking about a friend who asked me how much a book changes after it is accepted for publication, but before it is printed. My first response to her w...