@gothink

That's very kind, thank you, Nen.

Thanks for the reply,
I started creating the series as you suggested, hit upon the request to create a cover image and have the same problem: zero information on what size the cover image must be.

Is there a help page with all these details laid out?

Have just joined globalcomix (working on a computer, Windows 10, Edge browser) - trying to find a help section for creators to discover the image sizes (dimension and memory) uploads need to be.

Scrolling to the bottom of the Homepage, there appears a list of links BUT it is very swiftly replaced by comics suggestions. The list is only onscreen for half a second.