Query Builder would be the easiest way. With Query Builder you simply drag the tables you want to use into the QB window, click on the check boxes for the fields you want to use in the query and then click on 'execute'. QB builds the query for you and executing it will run it and return the results.
With Query Builder, if you don't like the results and need to add more restrictions and definitions and fields, etc, you simply drag-and-drop what you need (adding/creating joins for example) or adding more tables and views and your query will be updated automatically.
-Mark