The document is a lesson focused on analyzing the European Union (EU) as a regional organization through various theoretical perspectives such as rationalism and social constructivism. It examines the EU's institutional structure, including its legislative, executive, and judicial branches, and discusses key concepts such as intergovernmentalism, supranationalism, and veto player theory. The lesson also highlights objectives of the EU, critiques regarding its democratic deficit, and sets up frameworks for understanding EU policymaking.