In this philosophical study, Dmitri Nikulin explores the concept's genealogy to argue that boredom is the mark of modernity. Considering such thinkers as Descartes, Pascal, Kant, Kierkegaard, Kracauer, Heidegger, and Benjamin, Critique of Bored Reason places boredom on center stage in the philosophical critique of modernity. Ambitious, well-written, and marked by welcome touches of humor, Critique of Bored Reason is distinguished by extraordinary erudition, impressive expository and interpretative powers, and a genuinely constructive impulse that is grounded in a very deep knowledge of the tradition of philosophy.