For many quick searches this is the easiest method. If you do not know the exact spelling, you can type in part of the last name and the system will try to find a match. You can type in the beginning of the title if you do not know the complete title.
Examples are on each screen.
It will search for specific Library of Congress subject headings used to catalog items. If you try a subject search and you do not find any items, you may want to try your words in a keyword search. All search screens will have sample searches. If your search is unsuccessful, be sure to check for typos or spelling errors in the search terms you entered. Be sure to read each screen carefully.