Use check boxes to limit your search to Library Items (physical books and CDs), Archival Items (online oral histories, photos, concert recordings, posters) or both.

Looking for Books? put Book in the Object Type field
Looking for CDs? put Compact Disc in the Object Type field
Looking for Oral Histories? put Interview in the Object Type field
Looking for Concert Recordings? put Concert in the Object Type field
Looking for books you can check out? put Lending in the Other Copies field
Use quotation marks to search sequences of words