Mini album cover confusion

I want to start making mini albums - I have watched many videos. I noticed that some crafters do not put a card stock cover when they use black chipboard. When they use the kraft color chipboard, they always cover with card stock usually black (fully cover with a 1” inside border). In both cases, they put decorative paper on the front and back panels and spine. Is the reason that some do not cover black chipboard? Could it be because its black and does not need it or should you cover for reinforement or ??
It seems redundant to cover black chipboard with black card stock unless its for reinforcement. Kind Regards, Confused

I've never noticed this. Now I'm curious!

I don't know about this either as I use the Kraft colored chip board when I make mini-albums but one reason could be for cosmetic reasons as the Kraft isn't that pretty.
Another reason is that pre-made mini albums can be purchased and they are usually in black. I've purchased a book and only had to add pages.

Hope that helps. I'm only on my 1st cup of coffee so hoping I read your post correctly .

Hmmm .... I think it would help if you posted at least one video doing this. I'm not sure what you are asking. If I saw it then I could probably help you better.