There are thousands of electronic books (or "e-books") available at Queen's Library. When searching for books in QCAT you will encounter books in your search results that have "electronic resource" after the book title.
When you select the item record, the Holdings Information provides a link to the database that contains the full text of the book, the location will be Web and the call number Online:
You can also limit your search in QCAT to only retrieve e-books:
You can also search the library's subscription ebook collections directly. The best collections for sociology are listed on the Sociology Subject Guide.