If a book exists in overdrive, they allow you to request that your library add it to their collection. My first two requests were added to my library within day

If a book exists in overdrive, they allow you to request that your library add it to their collection. My first two requests were added to my library within days, several others came a few months later, and now about 4(?) years later I'm still getting an occasional notification about it, though at this point I've read them already...