When you add a library card to the account, you can use library services that are enabled by the card.
If you are not sure what your PIN code is, use "Forgot your password?" link, where you can reset your PIN code using your library card number and the e-mail address that is saved to your library user account.
When you log in using your library card, the service will store the library card number and PIN code as well as your name, email address and home library.
When you log in using your email address, the service will store your name, email address and home library.
Read more about management of personal information on the Data protection page.