Written in 1938/9, Mindfulness (translated from the German Besinnung) is Martin Heidegger's second major being-historical treatise. Here, Heidegger develops some of his key concepts and themes including truth, nothingness, enownment, art and Be-ing and discusses the Greeks, Nietzsche and Hegel at length. In addition to the main text, the text also includes two further important essays, A Retrospective Look at the Pathway (1937/8) and 'The Wish and the Will (On Preserving What is Attempted)' (1937/8), in which Heidegger surveys his unpublished works and discusses his relationship to Catholic and Protestant Christianity and reflects on his life's path. This is a major translation of a key text from one of the most important thinkers of the 20th century, now available in the Bloomsbury Revelations Series.