The talk introduced Professor Booth's latest book, which seeks to provide an accessible but sophisticated understanding of international relations for those with no specialised knowledge of the field (which is almost everybody in the world). The book argues that actually practised international relations are critical in determining who gets what globally, and in explaining 'big and important things' like war but also small and important things like individual identities. Meanwhile, academic International Relations (IR) asks the most fundamental questions about politics in the the biggest political arena of all. Despite this, there is a woeful ignorance, in general and in the social sciences, about this critical level of world politics.