You can renew your materials online by clicking on the "catalog search" tab at the top of this page. Click on "researcher". Click "log in" at the top left hand side of page. The user name is your library card number and the password is your last name all in lower case. Click "log in". Click on your name on the top left hand side of the page. Click on "activity" tab. This will give you a list of materials that are checked out. To renew, highlight on title you wish to renew and then click "renew" button at the bottom right hand corner of the page. A pop-up will come up with the new due date or will inform you that a material cannot be renewed. Call the library at (563)886-6266 if you have any questions or need assistance.