Boolean searching allows you to combine words and phrases when using the library's search tools. Boolean searching consists of three operators:
AND
OR
NOT
Each operator can be visually described by using Venn diagrams, as shown below.
AND
Searching for Apples AND Oranges will return results that include both terms and exclude any that include one or neither.
OR
Searching for Apples OR Oranges will return results that include one or both terms
NOT
Searching for Apples NOT Oranges will return results that exclude the second term