As we face the compounded crises of late capitalism - environmental catastrophe, pandemics, and technological transformation - who are the thinkers with a grasp on our world? McKenzie Wark surveys three areas at the cutting edge of current critical thinking: media ecologies, postcolonial ethnography, and the design of technologies. She introduces us to the ideas of seventeen major writers who, when brought together, contribute to the common task of knowing the world. Each chapter is a concise account of an individual thinker, providing useful context and opening connections to the work of the others.