As a publisher, you can decide to manage an Aerio account for your authors. To see the benefits of doing this, visit: Benefits of Managing an Aerio Account for Your Authors
You can set up your account the exact same way we describe here: How to Create an Aerio Store as a 1st-time user
Once you've set your store up, we recommend you create a workflow for sharing unique book page links and widgets with your authors. We recommend drafting a templated letter you can reuse with unique links every time a new book is published.
We suggest starting with your most active authors who have a strong social presence and online following.