Quote:
Originally Posted by SBT
Perhaps someone can enlighten me as to the raison d'etre for EPUB3?
The utility of EPUB2 is easy to grasp: define a subset of HTML4 so that books can be displayed on devices with limited features.
With EPUB3, it seems like more or less all of HTML5 is supported, giving the possibility of all-singing, all-dancing e-books. But what is then the point of wrapping another format around HTML5? Why not just keep your document as just an HTML file and have one less standard to comply with?
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Epub3 is great for languages with a different alphabet. In Japanese for instance, epub3 allows tateyomi (reading from right to left on vertical lines). Also, I'm currently reading a book with several footnotes. Each time I select one, it appears in a pop-up window. From there I can go to the linked page if there is more than the pop-up can show and easily go back to the page I was reading.
There are several posts around here explaining what the epub3 format has to offer, if you want to know more about it
