Preus Library uses the Library of Congress (LC) system to shelve books, journals, DVDs, CDs, and other items. LC call numbers group library materials into subject categories, or classes; each class is identified by a letter. Classes are broken down into subclasses by adding more letters; subtopics within are identified by numbers.
Because library materials are organized by subject, if you’re headed to the stacks to find a book, take a minute to browse the shelves around the book, too. You’ll likely find more books on the same or similar topics!