You can access your platform's statistics going to eLearnCommerce -> Statistics.
From there you can see their e-mail, User Role, Title of the eBook, Event and show the link. You can also track it and analyze for more information.
Download button allows you to download a CSV file with the report's data.
Clicking the Analyze button will open an additional report showing you the users who have interacted with that ebook, the event in question (for example, Open Link), the segment (URL), and the date of the event.