Unlike “AND” searches, only one of the search terms need to appear in a book or article in order for that book or article to appear in your search returns.John OR Jimcat OR felinesoccer OR footballTry visualizing it like this:Searching using “OR” gives you EVERY article or book that includes either of the two search terms (or keywords). OR“OR” lets you search two or more search terms at once. Here’s another example of using “AND”Poverty AND CrimeYour search results will show only items containing both search terms.īlue shaded area represents search results.povertycrime But searching “Jim AND Jill” will only give you the shaded portion-ie, only the results for where the two search terms overlap.JillJim Searching just “Jill” would give you the second circle.
Here are a few examples:Jim AND Jilldog AND catOlympics AND skiingTry visualizing an “AND” search like this:Searching just “Jim” will give you the first circle of returns. Both terms must appear in the article or book in order for that article or book to appear in your search results.
#Boolean search terms how to
NOTNow let’s look at how to use them when you search.ĪND“AND” lets you search for items that include two or more search terms or keywords. So what are Boolean Operators? You’re probably already using at least a couple of them. By constructing more specific searches, you narrow in on materials related to your topic much faster. Understanding Boolean Operators and how they work is useful for a couple of different reasons:Boolean operators make it easier to find the books and articles you need.Boolean operators make your searches more exact and thus more powerful. Once you’ve learned how Boolean operators work, your search skills will improve, whether that’s in a library database or Google. This is how Google works-it’s also how you search for books and articles in library catalogs and library databases.Boolean operators let you better control what sorts of books or articles will appear in your search results.Even more than this, Boolean operators are a helpful way of conceptualizing your search. Whenever you conduct a search in a search engine or database, you typically type in whatever you’re interested in-then the search engine or database gives you the results of your search. Boolean SearchingHow to find the books and articles you need quicker
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