Ok, so this is a total shot in the dark, but here goes...
When I was in 4th grade (around 1982) there was a series of sci-fi books for kids or teens in the library at school. All I can remember about them is that they were smaller hardcover books (bigger than paperbacks, but not too much - similar to those Golden books in size), and all black. One was about the moon- a moon base I think. I don't believe they were movie novelizations though.
The book was in English, school was on Long Island, NY (Bay Shore, Gardiner Manor school), number of pages was roughly around 100, how many in the series I'm not certain but I'm fairly certain that not all the books in the series were continuations of the same story, I think this was more of an anthology series.
And that's really all I got! I know it's not much to go on, but does it ring any bells for anyone? I've been hunting online for years with no luck.
EDIT 5/21/2021 - Just to try and close the loop on this, and especially on the chance that it could help others... I now have in my possession this fine collection of books:
There's one last one that's eluding me, but I'm on the hunt and it's just a matter of time before I complete the set :)
Now, the million-dollar question: are these ACTUALLY the right books? Well, they absolutely do check most of the boxes from my description, and there IS a feeling of familiarity to them when I flip through them, so the odds seem good they are. But, they don't EXACTLY match the picture in my head. Of course, we're talking about a picture that's somewhere around 40 years old now, so what's more likely, that these are the right books, or that my 40-year old memory is perfect?
Yeah, I'm gonna go with them being the right ones!
That said, if these AREN'T the right books, then I think I'm pretty much at the point where I believe I'll never find them and I'll just have to go to my grave with a picture in my head that is never EXACTLY fulfilled, and I think I can live with that.
But, like I said, the odds seem good - VERY good, even - that these ARE the right books. And, you know what? Even if they're not, this is a GREAT series and I'm VERY happy to have them in my hands!
So, to everyone that attempted to help pin these down, my heartfelt thanks to you all!! I may have never done it with out!!