By default, your PIN [1] is the last four digits of your phone number or the phone number you used when you applied for your library card [2].

By default, your PIN [1] is the last four digits of your phone number or the phone number you used when you applied for your library card [2].
Links:
[1] http://www.lexpublib.org/page/what-is-my-pin
[2] http://www.lexpublib.org/page/how-do-i-get-a-library-card
[3] http://www.lexpublib.org/taxonomy/term/1907
[4] http://www.lexpublib.org/taxonomy/term/1910
[5] http://www.lexpublib.org/taxonomy/term/1842