Boolean connectors are all about sets. It uses an algebraic concept, but don't let that scare you away. There are three little words that are used as Boolean connectors:
AND, OR, NOT*
Think of each keyword as having a "set" of results that are connected with it. These sets can be combined to produce a different "set" of results. You can also exclude certain "sets" from your results by using a Boolean connector. See the other tabs in this box for further clarification on the way you can get different results using different Boolean connectors.
*Boolean Operators need to be UPPERCASE when you type them into the search box.