Thinkers for a Complex Age offers a sustained engagement with key figures in modern and contemporary political and social thought in order to address one of the central problems of our time: how normative judgement remains possible after the collapse of philosophical foundations. Moving from Kant, Nietzsche, and Heidegger through Foucault, Deleuze, Butler, and Latour, and on to contemporary debates in political theory, ecology, and governance, the book reconstructs a mode of critical inquiry that is at once genealogical, relational, and normatively oriented.

Organised into six thematic sections, the book traces a clear conceptual progression across traditions and debates, from genealogies of the modern subject through poststructural, materialist, ecological, and institutional approaches to contemporary questions of justice and freedom. Each chapter provides a focused engagement with a major thinker, identifying both their key contributions and their limits, while contributing to an overarching argument. The book’s modular structure and its substantial annotated bibliography also make it especially well suited for advanced teaching, offering readers a coherent orientation across complex intellectual terrain.

Against both foundational moral theory and post-foundational scepticism, it advances a distinctive account of 'life continuance' as an immanent basis for ethical and political judgement—one grounded not in universal principles, but in the conditions that sustain agency, institutions, and collective life over time. Bringing together insights from continental philosophy, political theory, and contemporary social thought, this book offers a compelling framework for thinking ethics, freedom, and governance in an age marked by ecological crisis, technological transformation, and global interdependence. It will be of interest to scholars and students in political theory, philosophy, education, and the social sciences more broadly.

Mark Olssen is Emeritus Professor of Political Theory and Higher Education Policy at the University of Surrey, UK. His work focuses on political theory, social philosophy, and education policy, with particular interests in Foucault, neoliberalism, and contemporary debates on normativity and governance. He is the author of numerous books, including Constructing Foucault’s Ethics (2021) and The Return of the Good in the Age of AI (2026). His recent work develops a relational, post-foundational account of ethics centred on the concept of life continuance.