The introduction begins with a critical biographical overview of Aron’s career as a whole. This overview, which opens with an account of Aron’s emergence in the 1970s as an anti-totalitarian icon, serves as a point of entry into the larger questions addressed throughout the book. Both the 'French liberal revival' and Aron’s specific contribution to it have, it is argued, previously been treated more in laudatory evaluative terms than critical analytical ones. While the liberal status of Aron’s political thought has been largely taken for granted, the French liberal renaissance has been analysed on its own terms such that its claims for the historical illiberality of French political culture in particular have often been taken at face value. These points lead into a brief historiographical review which links the literature on Aron and the liberal revival to recent debates around the history of French and European liberalism more broadly.