Your Wolf card is what will become your library card if you ever desire to check out physical books in the library. You can acquire a Wolf Card for $5 at Student Services.
You will need to bring your Wolf card to the front circulation desk at any campus and they can create a library account using this card. We cannot make you a card with just your S#.
You DO NOT NEED a library card in order to access the databases or search the catalogue, or to use the library materials within the library. You ONLY need a library card if you intend on taking physical books, DVDs, graphic novels, etc. home with you from the library.