This chapter introduces the context and rationale for the book, noting the increased media and policy focus over the last decade, as well as the broader sociopolitical context of the Covid-19 pandemic, post-Brexit, and post-Trump milieux. The case is made for revisiting and challenging the dominant national frame for understanding academic freedom, noting the internationalisation and massification of higher education globally. The outline of the book is situated as addressing this gap and examining three theoretical and interrelated challenges: i) the presumed dichotomy between freedom and diversity/inclusion, ii) the relative lack of attention to the role of academic freedom in knowledge production, and iii) the lack of recognition of the transnational nature of academic freedom.