Yes! Here are the steps for adding co-authors:

  1. Have each co-author sign up for a Leanpub account, if they do not already have one. It is free to sign up. Here is a link to the sign up page:
  2. Have each co-author provide you with their Leanpub username.
  3. After you have created your book, in your book's Book Tools menu, select Book Info  and then click on Authors.
  4. On this page, you can use each co-author's Leanpub username to invite them to join your book.
  5. Each co-author then needs to accept your invitation on the Invitations page in their account here:
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