Book excerpt: As a medium for communication between the EU and the USA, law has the ability to provide unique insights into the state of contemporary transatlantic relations. A Transatlantic Community of Law offers legal perspectives on the emerging institutional characteristics of transatlantic relations and contemporary rule-making in both trade and security. Making use of rule of law analysis which has hitherto not been conducted in transatlantic relations scholarship, it draws together EU law, governance and rule-making scholarship and offers new ways of thinking about the use of law and contemporary transatlantic institutions.