This work seeks to explore the widely held assumption that the discipline of International Relations is dominated by American scholars, approaches and institutions. It proceeds by defining ‘dominance’ along Gramscian lines and then identifying different ways in which such dominance could be exerted: agenda-setting, theoretically, methodologically, institutionally, gate-keeping. Turton dedicates a chapter to each of these forms of dominance in which she sets out the arguments in the literature, discusses their theoretical implications, and tests for empirical support. The work argues that the self-image of IR as an American dominated discipline does not reflect the state of affairs once a detailed sociological analysis of the production of knowledge in the discipline is undertaken. Turton argues that the discipline is actually more plural than widely recognized, challenging widely held beliefs in International Relations and it taking a successful step towards unpacking the term ‘dominance’.An insightful contribution to the field, this work will be of great interest to students and scholars alike.