Martin Heidegger (1889–1976) influenced the work of such diverse thinkers as Sartre and Derrida. In Tool-Being, Graham Harman departs from the prevailing linguistic approach to analytic and continental philosophy in favor of Heideggerian object-oriented research into the secret contours of objects. Written in a colorful style, it will be of interest to anyone open to new trends in present-day philosophy.