I'm on the DAISY email list, and they pump out weekly ZOOM seminars about making accessible books.

July 1st 1500 UTC will address "World Tour of Inclusive Publishing Initiatives." Presenters are:
- Deborah Nelson, eBOUND Canada
- Hugo Setzer, Manual Moderno and President of the IPA
- Brad Turner, Benetech
- Kirsi Ylänne, NIPI (Nordic Inclusive Publishing Initiative) and Chair of the IFLA LPD Section

It's free, sign up here
https://us02web.zoom.us/webinar/register/WN_wBcgjEoNQ-SPC-WKNNsc7A

Two weeks ago they presented on best practices in image description; it's free to stream without any signup:
https://daisy.org/news-events/articles/describing-images-in-publications-w/

All the ZOOM seminars this year
https://daisy.org/webinar-series/

(The word "webinar" makes my skin itch.)