Check your account from MyLibrary Login, available from "My Account/Renew" under Quick Links at the libraries' website or under "Sign in" from K-State's website. Enter your eID and password or alternate ID.
From your account you can see materials you have checked out, when they are due, and if they are renewable. Renew them online by clicking the box next to the item(s) then clicking Renew. Verify that the due date changed.