Once you have a topic in mind, it's a good idea to run some searches to see what research exists on that topic. To get the most out of the library databases, plan your searches. You'll need to identify the key concepts in your research question, and then determine if you are using the most effective keywords. The Database Search Strategy Worksheet can help you plan this out.
Boolean Logic is a fancy term for a simple concept. Boolean operators are the connecting terms AND and OR used when constructing searches in the databases. It's called Boolean because it was named after a famous mathematician, George Boole, who developed it.