EMPOWER - Using the Online Catalog: Page 9 of 12
|You'd think you could enter any words that describe your topic as a Subject Search in the Online Catalog. However, the Subject Search uses special terms to organize books by subject. These are called Library of Congress Subject Headings|
If you entered a Subject Heading search for: acquired immune deficiency you would get no books!
But if you searched using the LCSH term, AIDS (Disease) you'd see the library has many books.