What is the difference between subject and keyword searching?
In keyword searching, you can use your vocabulary, and the catalog searches for those terms throughout in the item record: title, author, subject, chapter titles. You can combine multiple keywords to narrow or widen your search as needed. For example:
With subject searching, you must use a specific controlled vocabulary called Library of Congress Subject Headings to search for items. The easiest way to search by subject is to start with a keyword search. Once you've found one book on your topic, click on the tab "Find Similar Items" to see a list of subject headings. Click on a subject heading to search for other books with that same subject heading. Subject searching is more precise than keyword searching, but it takes some getting used to.