To find books at GSU on a specific topic use GIL-Find or GIL Classic, Georgia State University’s library catalogs.
If GSU doesn't own the book that you want, you can almost always get it from another library. Search the GIL Universal Catalog to find and request books from other University System of Georgia libraries. Also, as a GSU student, faculty or staff member, you can check out books at Emory University Libraries (you'll have to go to Emory to check out the books). And you can search for books from across the world using WorldCat. Once you find a book in WorldCat that GSU doesn't own, submit an Interlibrary Loan request for that book.