Use The CAT to find books/e-books, journal titles (but not articles), dissertations/theses, and titles in video/audio recorded formats in the Libraries.
The online catalog of materials owned by Penn State Libraries. All formats (books, journals, audiovisuals, maps, recordings, etc.) are included. Circulation status for individual items also provided. Coverage: Presently contains about 2 million titles. Updates: Continuous up-to-the-minute as new records are added
Use WorldCat to find titles not found in The CAT. The OCLC WorldCat database includes bibliographic records and holdings information from libraries worldwide. Use the Request Item via ILL link to borrow non-Penn State Libraries items.
OCLC WorldCat database is the OCLC online union catalog. It contains over 43 million records describing library holdings around the world.
HathiTrust is a repository of digitized materials in all disciplines. Its content, primarily scanned books and journals, may be searched by author, title, subject, and other data elements.
Sponsored by the libraries of the Committee on Institutional Cooperation, the University of California, and other partners, HathiTrust is a repository of digitized materials in all disciplines. Its content--primarily scanned books and journals-- may be searched via authors, titles, subjects, and other data elements.