Max Stirner was one of the most important and seminal thinkers of the mid-nineteenth century. In the shadows of Hegel, Stirner developed possibly the most radical and devastating critique ever of the discourses of modernity, incurring the ire of Marx, prefiguring Nietzsche, and having a major (though often unacknowledged) impact on diverse streams of thought, from existentialism to anarchism and autonomism, literary and artistic avant-gardes, and postmodern theory. This edited volume investigates Stirner's impact on critical thinking and social and political thought, exploring his radical and contemporary importance as a political theorist. In unmasking the religiosity lurking behind discourses of humanism and rationalism, and the domination of the individual immanent within liberal modes of politics, Stirner demolished the ontological foundations and universal grand narratives of our modernity. His thought has implications for contemporary questions of ideology, power, subjectivity, ethics and action, and opens the way for entirely new forms of politics.