EPUB‘s structure- How it impacts iBooks app
Epub iBooks create a basic structure of contents from the ePub format and this table of contents helps readers to enhance their experience. Navigational elements can be easily created using HTML5 elements. By making use of <nav> elements, table of contents and landmarks can easily be created. In reflowable format it is relatively easier to create a table of content using <navMap> element. Basically the iBook app uses data in the NCX file which consists of the nav elements to build its own table of contents. These are accessible using navPoints which are inside of the navMap element. No matter whether you are using a list table or not, iBooks will usually create a table of contents for a fixed layout book. IBooks EPub3 support relies on a simple landmarks navigation structure which replaces the proprietary <guide>element of ePub2 format. But there is a caveat. You need to provide custom samples to make the fixed layout books navigable. Else there has to ...