This selection of newly discovered letters to and from Lukacs will be useful to scholars interested in the etiology of his thought and in the intellectual and cultural climate of central Europe during a critical period. In addition to representative letters that show Lukacs’s developing ideas on ethics and aesthetics, as an aid to research the editors have included as much as possible of the correspondence with Max Weber, Georg Simmel, Martin Buber, Karl Mannheim, and Karl Jaspars.