The Helmke Library Catalog is the first place to look for books. You can use Purdue Borrow to access collections at other Pufdue campuses using the catalog as well. If you do not find what you need via our catalog, try FristSearch for a more expansive worldwide collection of books that you can order via Document Delivery.
You can experiment with and adapt these examples:
Basic Search: espionage france
Basic Search: heresy ("middle ages" OR medieval)
Basic Search: Explorations on Subjectivity, Borders, and Demarcations
Advanced Search Author: jefferson thomas
Advanced Search Title: holocaust memory
Advanced Search Subject: "vietnam war" "protest movements"
Advanced Search Subject: medicine history "20th century"
** Hint ** Try doing a ("search anything") basic search, then look for relevant Subjects (at left hand side of screen of within a book record).