LSU Libraries User Instruction
Searching Techniques and Strategies Tutorial

Boolean Searching - AND

AND links terms together in a way that makes your search more narrow. Using AND tells the computer that you want records that contain all the words you specify. For instance, the following search will find you only records that contain the words "dog" and "cat":

dog and cat

If the record contains only the word "dog", it won't show up. Likewise, if it only contains the word "cat", the search will ignore it. The record has to contain both terms for the search to return it.

Although you can use AND to link together as many terms as you want, the more times you use AND, the more narrow your search gets, and the fewer records your search will turn up. For instance, a search on dog and cat and snake would turn up less records than one for dog and cat.

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