Yes, all GSU students may use any GSU library. Be aware that some campus libraries require student IDs or other government-issued IDs for access, so bring your Panthercard or alternate ID with you. Your Panther print funds are good at any campus—more information on printing, copying, and scanning.
A very few databases are restricted to users at a certain campus. Other databases may require you to set up an account. See the database descriptions (and any access restrictions) in Databases A-Z.
See the Visit the Library page for hours, directions, phone numbers, and parking information for further information.