No idea how to get actual book files

I am new to Anna archives and paid for a membership. I found a book hit save put it into a list but now I cannot find that actual file and I have no idea how to take it and get it on my Kindle. When I used the Z library, I would just have to press the button and it was linked. Do we have that option here?

I am pretty savvy at things like this yet. I cannot figure it out. Is there a tutorial? I can't seem to find anything on the FAQ.