The main objective of this essay is to construct a conceptual background to the problem of reification [Verdinglichung] in the works of Martin Heidegger and Georg Lukács, Being and time and History and Class Consciousness. This problem is approached through four main chapters – the method of phenomenology and marxism, the critique of the sciences, the concept of wholeness or totality, and the possibility of a phenomenological marxism. By making a parellell reading of these two works, the hope is to contribute to an understanding of the problem of reification as approached by the phenomenological and marxist perspective, and how these perspectives together might contribute to a better understanding of the problem as a whole.