I’m reading a LOT of documentation about the new PDS4 standard (close be one).
Many of the documents here are PDF, but some are simply plain HTML pages. I’m lazy and I prefer to read it on my tablet/ereader, so I formatted some page as nice* epub, embedded with figures and Everything**.
Check out this page, as I’m gonna update with new version and new files.
If you are on a mac and need a free ebook viewer I can suggest to download Calibre and follow this tips
Calibre as Ebook Viewer
* DISCLAIMER: It is my opinion and do not necessarily reflect yours!
** It is not the same Everything as in here