Browsing can be a fine way to get a sense of how much is available, to make interesting discoveries, and simply to relax.  However, it is usually not a very effective way to find a specific book, article, or picture. 

Please always ask at a library reference desk or use the online Ask-A-Librarian service if you need help locating what you need.

As with most American libraries, Penn State organizes books and bound volumes of magazines by the Library of Congress Classification System. The medium is an important part of the organization.  Architecture-related materials are classed primarily in the NA section of the library. Other relevant call number ranges: TH (building and construction), NK (interior architecture and design), E-F (U.S. history, historic preservation), HT (city planning), etc.  

The table below contain locations within Architecture & Landscape Library at the University Park campus, but the call numbering and categories are also useful at any Penn State library location.  There are also exceptions to the UP locations, so again, ASK if you can not find what you need