During the uploading and publishing process, KDP allows you to list 10 contributors and their titles on the book’s details page. To include more than 10 authors for multi-author books :

1. Add the first 10 authors as contributors
2. Publish the book
3. Once published, Amazon assigns an ASIN number to the book
4. Contact KDP Support

Option 1: Email KDP support – kdp-support@amazon.com (must be done from the email address associated with the KDP Account) with the request provided below.
Option 2: Login to the KDP account where the book is published.

1. Select Help from top menu

2. Scroll to the bottom left of the screen and choose ‘Contact Us.’

3. Select ‘Amazon Details Page Features’ and ‘Send Email’

4. Enter the following information in the ‘Why Are You Contacting Us?’ text box.

Subject: Request To Add Contributors
I would like to request to have the following Authors added to the title “[BOOK TITLE]” with ASIN: [asin#].

These are listed as First Name Last Name

Author Name
Author Name
Author Name
Author Name
Author Name

After receiving your request, KDP will add additional authors within 24-72 hours.