Boolean Logic is a form of algebra-based in what is called Boolean operators: "Or", "And" "Not". These connectors form the basis of mathematical sets and logic. Basically, they connect words to narrow or broaden the meaning in a sentence.
You use Boolean operators when you search a topic that contains multiple search terms or to connect pieces of information
The use of "Or":
-When you connect similar concepts.
-When you want to broaden your results.
The use of "And":
-When you need to narrow your results.
-When you need all the terms to be presented in the search.
The use of "Not":
-To exclude words from your search
-To ignore concepts in your search and narrow your options.