Quote:
Originally Posted by Turtle91
Sooo, I know Sigil has a plug-in to save an ePub 2 to ePub 3, but if I wanted to go crazy and learn what the differences are…. In simple terms, not the spec, is there an easy to read tutorial or something I can be pointed to???
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You'll find a short epub3 overview in the
Apple Books Asset Guide. It's obviously somewhat Apple-centric.
Pretty much the only thing that you'll need to pay attention to is that you can't use named entities in HTML 5 files. For example, you'll need to use
  instead of
.
You'll also need to add the proper name space attribute, if you want to use
epub:type attributes to define page numbers or footnotes.
And when you're done with your epub3 book, you might want to select
Tools > Epub3 Tools > Generate NCX/Guide for epub2 e-readers.