Start with a KEYWORD search. If you see a book that matches your topic, look at the record and notice the blue hyperlinked SUBJECT HEADINGS at the bottom of the record. If you click on one of them, the catalog will show you what other titles are in the catalog with that SUBJECT HEADING assigned to it. Remember like books sit on the shelf next to one another. If you find one book on your topic, go up to the shelf and look at what is sitting next to it. Chances are there will be other books on your topic nearby.