Use the GLDYS search box at the top of the page to search for books!
You can find articles using that search box as well, but you may have better luck using a database listed below!
Google Scholar is a great resource for finding scholarly resources. It is also a great place to check for the full-text of an article before submitting an ILL request.
Newspapers will add life to your briefing through reporting of current events, elections, debates, policies, etc.