How to add paperback when ebook is already listed

[Sophie]

Hi - my book is currently listed on Goodreads an an ebook only. I'd like to add the paperback so I can do a reader giveaway. Please let me know what info you require from me to do this.

Many thanks
Sophie

[Cait]

You can give the same information as for creating a new book:
https://www.goodreads.com/topic/show/...

Just say that this is a new edition of an existing book. If any pieces of the new edition are the same as the existing edition's, you can say so instead of writing them out again.