"Professor De Blois, long recognized as a leader in the area of Roman History, has produced an admirably clear analysis of the complex third century AD. The argument is clear and original, the study of how a new, professional administrative class saved a state that had lost direction and imagination will resonate with readers whose interests range well beyond the history of Ancient Rome."- David Potter, University of Michigan, USA"Whether in legal, military, political, or economic matters, there can hardly be a scholar more qualified to venture an opinion, let alone produce a definitive statement, on the situation in the third century CE than Lukas de Blois ... De Blois has crafted a fascinating approach to the third century that makes the most of his undeniable expertise. The book will be of interest to any who wish to gain a more comprehensive understanding of the period, have an interest in imperial power, or to specialists in the period’s political, military, economic, or ideological history."- Jane Sancinito, Oberlin College, USA, Bryn Mawr Classical Review 2019