This third volume of the Collected Works of Roman Ingarden follows on from the 1998 edition of the "Writings on the Phenomenology of Edmund Husserl" and concludes the edition of Ingarden's minor interpretive and critical studies on phenomenology. It assembles a number of articles by Ingarden devoted either to other figures of the phenomenological school (in a broad sense) - Franz Brentano, Kasimir Twardowski, Max Scheler, Edith Stein - or to the major tendencies of that school.