Perhaps you forgot to add a credit for the book cover image, or neglected to add page breaks between chapters of your ebook. (feedspot.com)
A typical example is the list of page breaks, which usually isn't rendered as part of the content flow but instead exposed to the User separately in a dedicated navigation user interface. (idpf.org)
For example, this can be used to create page breaks before a new chapter. (guidohenkel.com)