The library homepage search box searches all library systems--the catalog, articles, and library websites.
The catalog contains a record for each item EXCEPT articles -- all the holdings of all Cornell University libraries including records for books, ebooks, DVD's/videos, sound recordings, magazines/newspapers/journals, online journals/newspapers, computer files, government documents, manuscripts and archives, maps, musical scores, and more.
The advanced search allows for more precision. The drop down menu to the right of the search box allows you to search by Author, Title, Keyword, or Subject, or combinations:
Refine a search with the facets on the left. (Do you want only Italian language books, for example.)
To search the holdings of libraries beyond Cornell click on Results at “libraries worldwide” (Worldcat Local) on the left of the results page.