The catalog is located at http://catalog.yln.info. In order to log in you need to click the Log In link at the top of the page. A small window will appear where you can enter your library card barcode number into the field labeled "barcode". Then enter your PIN number which is generally the last four digits of your phone number. Finally click the log in button once you have entered your barcode and PIN. If you are unable to login using your barcode and PIN please contact your local library for help.
When you are finished using the catalog be sure to click the logout button which is located at the top of the page.