EpubMetadata
Publication metadata surfaced to a reader UI: Dublin Core fields plus the cover image and reading direction. Paths are zip-absolute.
Properties
Whether each of creators reads right to left, in the same order and decided as titleRightToLeft is (#510).
The media overlay metadata of the book: duration, narrators and active classes (#36).
The zip paths of the pronunciation lexicons (PLS documents, application/pls+xml) that the manifest lists, for a speech engine to read with EpubDocument.resource (#39).
How the whole book asks to be shown. EpubDocument.renditionOf gives the values of one chapter (#37).
True when the pages progress right to left: the spine says rtl, or it says nothing or default and the book is vertical-rl or in a right-to-left language (#512). It orders the pages only; each chapter's text reads in its own direction.
True when title reads right to left, for a host to show it in its own run of text with that base direction (#510). The title's dir decides when it says ltr or rtl, else the package's does, and with auto or no direction at all its first strong character does (EPUB 3.3, the dir attribute). False when there is no title.