DR Fred, I found this:
"You cannot directly change the star rating on an existing Barnes & Noble review; instead, you must delete your old review and post a new one with the correct star rating. To do this, submit a deletion request to
reviewmoderation@bn.com with the product title, its ISBN/EAN, and your username or email address.
Steps to Change Your Rating
1. Request Deletion:
Send an email to
reviewmoderation@bn.com.
Include the Product Title, EAN/ISBN, and your email address or username in the email.
Once your review is deleted, you will be able to post a new one.
2. Post a New Review:
Go to the product's page on the Barnes & Noble website.
Click the "Write your review" button.
Select the desired star rating.
Write your review.
Click "Post Review" to submit it."