Abstract: The electronic book apparatus includes an already-read information giving unit 15 configured to give already-read information for a viewed page and a page feeding processing unit 14 configured to perform page feeding processing within a range of pages to which the already-read information is given when page feeding operation is performed. Further, even when the user returns from the half-read page back to an already-read page to view the already-read page and then performs an operation to feed pages to an unread page beyond the original page, the feeding of the pages is stopped at the last page of the already-read pages, thereby preventing an unread page from being inadvertently displayed. The user may also return back to the original page without performing cumbersome operations to give and delete bookmark information to the half-read page.