My book is out

Yesterday a courier delivered a cardboard box containing the 12 copies of my book that I have acquired for the book launch next week.
I am really proud of my achievement. It's nearly two years since I sent off my proposal to a few publishers, and 18 months since I signed the contract so it is great to get the book in my hand.
I've riffled through the pages but I daren't read it in case I see a typographic error or, worse, read a sentence I could have written better.
I know that there were pre-orders for the book so the next step is to face up to the reviews.