I went over to z-lib.is and found that first, my old account was no longer recognized; and second, it wouldn’t let me access any books. It just redirected me to some page asking me to purchase a “lifetime premium membership.” What’s going on there?
ETA: Z-Library’s domain was taken down some time last year. They’re now available through TOR, and the onion link is on Wikipedia: https://en.wikipedia.org/wiki/Z-Library
Don’t give your money to whoever is running the .is site!
Go to Z-library on TOR. Set up an account. From there, get your “personal” open-web links. Z-library will provide you 2 links that will be unique to your username and will work with a normal browser.
This is the way. Can’t remember how to get to it otherwise though. Do they have a non-tor page called ‘singlelogin’ or something like that?