OneSearch (also known as EBSCO Discovery Service) is a tool that provides a single search box to simultaneously search many of the libraries' resources, including books, e-books, articles, media, and more. Check out this step-by-step guide to using OneSearch.
You can also search for books and ebooks using their native interfaces.
To find books and government documents in USA Libraries' collections, use SOUTHcat: USA Libraries' Catalog.
The Marx Library has a variety of ebook collections on a plethora of subjects. For the complete list, see the Marx Library E-books page. For tips on using these ebooks, see Using Marx Library Ebooks with Ereaders. Some collections that may be particularly useful for students in Honors classes are: