When reading through the course material I found the term Boolean appearing with out an explanation. Having a not heard of that term before I searched online and found a quick explanation.
Boolean searches allow you to combine words and phrases using the words AND, OR, NOT (known as Boolean operators) to limit, broaden, or define your search. A good researcher should know how to do a Boolean Search.

"AND" logic
AND : Using AND narrows a search by combining terms.

"OR" logic
OR : Using OR broadens a search to include results that contain either of the words you're looking for.

"NOT" logic
NOT : Using NOT will narrow a search by exclusion. (Some search engines, like Google, recognize the minus (-) symbol, instead of the word NOT).
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