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But seen the kind of your questions so far I strongly advise you to buy some basic textbooks on analogue photography. They are on the used market. As books on the Canon AE-1.
Books on close-up photography won't hurt either. Especially older used ones in which film cameras are discussed. I recommend any of the older stuff written by John Shaw, but I'm sure there are other notables as well. In fact, I most highly recommend this one:
https://www.amazon.com/John-Shaws-Closeups-Nature-Shaw/dp/0817440526
It was written in 1987, so you'll be reading about Shaw using his manual-focus 35mm cameras. He's mostly a Nikon shooter, but whatever he teaches won't be specific to that brand.
Also, it's worth noting that Corey has an AE-1 Program, not an AE-1. There's a sizable difference between the two, and if she wants to find books on her camera, she shouldn't be confused into thinking the AE-1 is the same. One of the big differences is the AE-1 Program has interchangeable focusing screens -- the only A-series camera that has user-interchangeable screens, if I'm not mistaken.
Anyway, I recommend strongly, Corey, that you look for a plain matte screen for your AE-1 P. The plain matte screen for the AE-1 P is the screen "C". Screen "D" is plain matte, but has horizontal and vertical lines to aid in composition. Screen "H" has scales in millimeters marked, useful for close-ups, architecture, and other forms of photography where precise measurement is required. Any of these screens work well for macro work -- you aren't distracted and annoyed by the microprism and split-screen going black on you. A good place to search for a plain matte AE-1 P screen is eBay. Probably one of the few places, these days. That's where I found a plain matte "C" screen for mine.
If, after you've installed a plain matte screen, you find you're having trouble focusing on your subject without focusing aids, then you might consider getting a Canon Magnifier S, which magnifies your image 2.5x. It has a diopter adjustment, in case you wear glasses. I just checked eBay. There are several there right now. You don't want the adapter -- or at least not by itself -- you want the magnifier, which should include the adapter. I just got used to shooting without the microprism and split circle, which you probably will too if you use a plain matte screen often enough.