Introduction to Metaphysics (Heidegger book)
Heidegger gave a course of lectures in the Summer of 1935 at the University of Freiburg. These gave a summary and development of his metaphysical views in the book Being and Time[1]. The content of these lectures were published in 1953 as "Introduction to Metaphysics"[2], although the work is more detailed and specific to his earlier work that the title may suggest.
Heidegger commended this book, with its companion "Being and Time", 1927, as summarising his views at that time (1953) on ontology He believed we should base our knowledge on how much we can discover about existence through attending to our subjective experience of the world. He believed that Western philosophy and civilisation had increasingly erred through using and manipulating concepts not derived from experience.