[qwerty456127]

That's among the reasons why I actually dislike ePub and prefer to convert (which involves pandoc/calibre + some hand-written scripting and hand-editing) epub to FB2 (which I love, it only has some minor imperfections). FB2 is a well-structured straightforward single-file XML designed with data-presentation separation in mind.

[throwanem]

I can see the appeal, but that's not an option for me right now, since EPUB is on the input side of the project that's had me studying the relevant standards in the last few days.

That said, it's not the worst standard, if a little bit overcomplicated by trying to be all things to all people with a bunch of features I suspect are almost never actually used in the wild. Having the content already formatted as XHTML is really convenient for what I'm doing with it, too.