Keep items out longer
When you check out an item you are given a due date by which it must be returned to the library. Many libraries have an option for you to renew the book online in order to keep it out longer.
Once you logon to your account, you will see a list of the items you have checked out and when they are due. To renew an item online, check the box next to the item in the renew column. You can check multiple boxes. Next, click on "Renew" at the bottom of the list.
Make sure that all of the items you checked now say "Renewed" and show a new due date. If an item does not say it is renewed, you must return it to the library by its original due date.
You cannot renew an item that is already overdue.