In the most basic sense, subject headings are used to help the researcher more easily find materials on the same subject matter. Library of Congress Subject Headings are assigned to all, or almost all, books published after 1989 (think of this as library "tagging" but using the same terms so that everyone knows which terminology to use). For example, if I wanted to see what books my library might have with personal reflections from British citizens about World War II, I might search for the following subject heading:
That subject heading would show me a list of books in Sterne Library written by or including personal stories from British citizens either written during or discussing their experiences in World War II. These include diaries, memoires, etc, and we currently have 226 of these gems in our collection.
If you are unsure about spending time with a book, Book Reviews can go a long way to help you make that choice. Check out the link below to get more advice on how to find Book Reviews.
The design of this page was adapted in part from Research: By Course, Subject, or Topic, by University of Arizona Libraries, © 2020 The Arizona Board of Regents on behalf of The University of Arizona, licensed under a Creative Commons Attribution 4.0 International License.