We are not lawyers, so we'll try and keep this short, sweet, and legible for ordinary people.
We will not share your data with anyone without your permission. Your book belongs to you, and you alone. You may modify all information you submit regarding yourself and your book at any time.
We do run statistics programs on our web traffic, but these operate on aggregate data and do not track individual users in a way that they're identifiable to us.
In short: we don't share your information with anyone without your explicit consent to do so, and don't foresee the need to share your information with anyone in the future, either.