Final answer:
In the context of a college library, 'check holdings' means to verify availability of the book on-site, and if unavailable, services like GIL Express or Inter-library Loan can be used to request the book from other libraries.
Step-by-step explanation:
When a library catalog indicates to 'check holdings,' it generally means that the library may have the book, but you need to verify if it is currently available or if certain copies or volumes are housed there. In the library at the University of West Georgia (UWG), if a book is not available in their collection, you can make use of a service known as GIL Express, which allows you to request books from other University System of Georgia libraries.
However, if a book needs to be obtained from libraries beyond this network, your college library can facilitate an Inter-library Loan (ILL), where the book is borrowed on your behalf from another institution.