To find books (and book chapters) use DePauw's Discovery search.
The screencast below describes how to limit to e-books in WorldCat Discovery.
If you're taking classes and/or living on campus, you can request books be pulled for you, via our contactless pickup system.
If you're off-campus and you need just a chapter of a book that we have in print - just email me at firstname.lastname@example.org and I'll see if we can get a scan of it (if it's not checked out).
NOTE: there is no interlibrary loan (ILL) of books available in Fall 2020, whether you're on or off-campus.
Google Books will not contain the full-text of any current books. But you can often see a limited number of pages (helpful in determining if the book might be useful for you) and can be useful in finding passages where certain keywords appear (you can search the full-text).