The articles in this volume discuss the relation between values and ontology, focusing on the significance of ontology for ethics and aesthetics, i.e., themes which due to the raising interest in ontology come to play a central role in contemporary philosophical debate. The contributors address the questions of whether and in which sense values can be considered to be real, whether it is possible to experience them, and in which sense we can speak about their objective validity. These topics – which were also discussed by early phenomenologists like Brentano, Meinong, Ehrenfels, proponents of Gestalt psychology like Köhler, by Husserl, and by French phenomenologists like Merleau-Ponty – are approached by both historical and systematic analysis.