Boolean operators

Boolean operators are also known as logical operators. They allow you to tailor your search to target very specific items or subjects.

There are three operators you can use: "and", "or" and "not".

• "And" searches for items containing two or both search words. For example, the search "poverty and crime" will search for items including both "poverty" and "crime".
  
  
• "Or" searches for items containing either or both search words. For example, the search "college or university" searches for items that contain either the words "college" or "university", as well as items that contain both words "college" and "university".
  
  
• "Not" searches exclude records that contain a certain word or phrase. For example, the search "cats not dogs" searches for items containing the word "cats" but if the word "dogs" appears in the record, that item will not be selected.

Type your search phrase with the Boolean operator in the Search window, then click the appropriate search button (Author, Title, Subject, All Fields).