Squarespace Native Slide Show (full)

Both native squarespace slides no longer support video. No idea why because they used to before updating their interface.

 Squarespace Native Slide Show (Reel)

 “Yumpu.com” Online Book PDF

Website:
yumpu.com/en

Currently on free version.
Paid version does support video alongside stills.
Paid version is € 179.40 a year. ($200)

We started playing with Yumpu mostly because they allowed you to embed elsewhere for free.
I think originally we talked about Issu.com but embedding was not part of their free plan.

 Other Alternatives?

Issu.com
Video embedding starts at $40 a month plan.

Maybe not use squares space?
(new monthly squarespace + new monthly whatever to just have a flip book style)
Not sure what you’re budget is, but maybe finding some other website that can present may be easier than trying to embed it into squrespace.