Depending on the course material you selected, your course may include a PDF (Portable Document Format) eBook, an HTML eBook, a MetaText eBook, or no eBook. By default, the Books content area appears only if your course includes a MetaText eBook, but you can add the Books content area by changing its area availability setting.
You can add, modify, or remove eBook links. An eBook link is a link to a page in an eBook that comes with your course material.