Check out tutorial below on finding books in the catalog
Get the Books You Need
SLU Libraries Catalog - Your first stop! Here you'll find books from Pius, Law and Medical Center Libraries, as well as the Libraries' Locust Street Facility. You'll also find journals, government publications, audio books, DVDs, and eBooks and other resources you can access online.
MOBIUS Catalog - This union catalog includes university and college libraries from across Missouri. If SLU doesn't have the book you need, requesting it from MOBIUS is the fastes way to get your hands on it. You can also visit MOBIUS libraries in person to check out books. For example, if Washington University has a book you need, you can go check it out in person using your SLU ID & banner number instead of waiting a few days for it to be delivered for you on campus.
WorldCat - The world is your oyster! Well, at least North America. Search WorldCat to find & borrow books from all over North America (and occasionally farther afield). Books requested through WorldCat can take 6-14 days, so plan ahead!