@beep @Wilto @zachleat @scott @eaton see also https://rachelandrew.co.uk/archives/2014/01/07/html-epub-mobi-pdf-wtf-creating-an-ebook/ see also https://24ways.org/2013/how-to-write-a-book/

HTML, EPUB, MOBI, PDF, WTF – creating an ebook – Rachel Andrew