This book explores the role of radical ideas in contemporary fiction by nine critically acclaimed authors--Jonathan Lethem, Dana Spiotta, China Mieville, Thomas Pynchon, Rachel Kushner, Teddy Wayne, Colson Whitehead, Jacqueline Woodson, and Kim Stanley Robinson. All of them share interests in the politics of the left, the problems of protracted economic crisis, and the potentiality of post-capitalist ideas. Novels by these authors, this book argues, are defined by an imperative to confront current anxieties in left-thought, while, at the same time, evincing a nuanced degree of self-consciousness about the legacy of political radicalisms, the costs they accrue, and where they have led.