Please choose the correct ending to complete the given sentence: Education and Communications: [header] How to add books to google books [title] Join the google books partner program at the website listed in the sources section of this article. [substeps] Verify that you hold the copyright to the books you want to submit. If you are not the copyright holder--the author or publisher--do not attempt to submit books.

Ending1: You can list books with google books if you're self-published or the rights to your book have reverted back to you. Fill out the forms on the google books website and then send physical books or digital pdf files to google books. Ending2: However, if you've already logged in, an email (through an email address block unknown) will be sent to your email address. Follow the prompt to sign in, and enter your signature. Ending3: You'll actually consider recommending your book to a publisher, even if you haven't read the books listed. [title] Navigate to the service's website. Ending4: You will need to be able to verify the author's contact information. Enter the address of the publisher in the search bar at the top of the site or go to the website's user interface.

Answer format: ending1/ending2/ending3/ending4