Martin Heidegger, The History of Beyng is reviewed at NDPR by Mark Wrathall. Here’s the first paragraph:

This volume — a new translation of volume 69 of the Gesamtausgabe or “Complete Edition” of Heidegger’s work — consists of two distinct parts: the manuscript of an incomplete and unpublished treatise on “The History of Beyng,” and the manuscript of a short (but, to all appearances, more complete) unpublished treatise entitled “Κοινόν: Out of the History of Beyng.” The two manuscripts, composed between 1938 and 1940, are closely related in terms of thematic content. In these manuscripts, we get an intimate glimpse into the development of Heidegger’s account of the history of metaphysics by bringing it to bear on contemporary events. The historical phenomena that form the particular focus of Heidegger’s analysis include the outbreak of the Second World War and the rise of Communism. By interrogating the ontological background of such world-historical events, Heidegger arrives at an intriguing account of the nature of power in the twentieth century.