Martin Heidegger s writings on Hegel are notoriously difficult but show an essential engagement between two of the foundational thinkers of phenomenology. Joseph Arel and Niels Feuerhahn provide a clear and careful translation of Volume 68 of the Complete Works, which is comprised of two shorter texts a treatise on negativity, and a penetrating reading of Hegel s Phenomenology of Spirit. In this volume, Heidegger relates his interpretation of Hegel to his own thought on the event, taking up themes developed in Contributions to Philosophy. While many parts of the text are fragmentary in nature, these interpretations are considered some of the most significant as they bring Hegel into Heidegger s philosophical trajectory."