When you find a Library of Congress (LC) call number in your library search, notice that it is written a bit differently than it will appear on the book spine. In the database, it reads straight across. However, on the book spine, it will be broken down into components that make it easier to read.
(Image from the University Library, University of Illinois Urbana-Champaign)
Here is an example from Search It:
Call numbers group materials on similar subjects together to facilitate browsing. So, if you find one book that closely matches your topic, you will likely find others next to it on the shelf that fit with your research.This does not mean that ALL books on a topic will be in the same section, however. For example, books on "women in politics" might be located under women's studies, political science, history, sociology, and more - all of which are shelved in different areas of the library.
The beginning letters of an LC call number indicate what broad classification your book is in. To get a sense of where books on particular topics are located in the library, click on any of the links below.