In order to access the online databases, like Reference USA, from your home or office computer, you need to enter your valid Phoenix Public Library card number and your last name, or your online username and password (if you have registered for one) that is associated with your Phoenix Public Library card. Remember to enter your library card number without any spaces. If you need help, you can call Telephone Reference for more information, send an email to Ask a Librarian or use the Help pages for more information