What I typed up in my original Reddit post:

I'm trying to use pictures and footage in a way that's not copyright infringement. I'm trying to take a note from Hbomberguy here. But of course, that may be impossible, I'm just not sure. Maybe it's a high bar. Do YouTubers often check or give credit in their pictures?

I'm trying make sure I don't get into trouble and remain ethical, take the moral path, so to speak. I have sources, at least. Maybe not full citations, but I talk about my sources in my book reviews. But the pictures and slides confuse me. Is there a way to cite them or do I just take them from Google images or some stock photo and use them? What about screenshoting some?

What about using footage or footage from other YouTubers? Stock footage? Or footage from another YouTube channel, like historical footage or black-and-white footage? Or, say, you wanted to use a gaming stream footage? I'm trying to cover my bases here.

I'm just trying to not get in trouble and remain respectful.

What are the ethics here?

Sorry, dumb questions, I know, but I feel that a clear answer is needed and Reddit gives me answers better than Google searches, though I am using those.

I didn't get as many answers as I would've liked. I'm also looking for resources for stock imagery or footage or music. In addition, anything else I need. Maybe a website with free images? I don't know, but anything I might be missing.

Cheers!

I am looking through Googel and Bing on this topic so I'm still doing my own research; this is just in case I've missed anything.