EPUB Accessibility: Discovery of the Writing Direction (DRAFT 1.0)

Dear colleagues,

Here is another document from the Japanese
DAISY consortium.

https://1drv.ms/w/s!An5Z79wj5AZBgtUx_1os2PNRrYkDjA?e=v9qSpH

It summarizes discovery requirements for
accessible EPUB publications according
to user preferences on the writing direction
(horizontal or vertical).

I hope to register Schema.org metadata
and ONIX metadata based on this
document.  (BTW, Keio University is
already a member of EDItEUR for this
registration.)

Regards,
MURATA Makoto, Keio University