The "Waymarks" - the newly released Volume 9 of the Complete Edition - provide a cross-section of Heidegger's thought from 1919 to 1961. The volume begins with a work from the early stages of his own path, characterized by the hermeneutic-phenomenological design of philosophy as the original science of factually world-related life and by the formulation of the question of Being as the question of the difference between "I am" and "something is - what." This is followed by texts from the period of fundamental ontological elaboration of the question of Being, addressing the relationship between phenomenological philosophy and theological science, the phenomenological destruction of Leibniz's ontology, the essential connection between Nothing and Being, and Transcendence - as a threefold founding event of Dasein. Writings from the historical thinking of Being follow.