Knowing the difference between search fields helps you dig deeper into a catalog or database to find relevant information.
Keyword: searches anywhere and everywhere for the search term. You get lots of results but fewer will be relevant to your research.
Subject: searches only in the subject headings for the term. You will get results where your search term has been described as one of the main subjects of an item, meaning fewer results but much more relevant sources of information.
Find Books in the Library Catalog
Why would you use a book over an article you can find online? Typically books you find in the college library are nonfiction works; the exception being any Literature or poetry of significance. The library collects books detailing research on various topics you may learn about in your classes. Because they are longer than articles you find online and in the databases, books are great, in-depth sources of information.