Error in Adding Book

[Angie]

I am reading an ARC of this book. It was not on Goodreads, so I added it, but it added it as if David Walton is a new author. He is actually an existing Goodreads author, who wrote, among other books, Three Laws Lethal. Can someone correct this or tell me how to do it?

[Scott]

Moved. When adding books, enter names with the first name first, and the last name last.

[Angie]

Thanks so much, Scott!

[David]

Thanks, Angie and Scott. Will the book cover image eventually update from Amazon, or does that have to be specifically added? If so, how?