This collection of essays is a significant scholarly contribution to angelology. The unifying theme is that of the role of angels in philosophical inquiry, where each contribution represents a case study in which the angelic model is seen to motivate developments in specific areas and periods of medieval philosophical thought.

Isabel Iribarren is Lecturer in Medieval History and Theology at Strasbourg University, France and Martin Lenz, is Research Associate at the Humboldt-University, Germany

Introduction The Role of Angels in Medieval Philosophical Inquiry, Isabel Iribarren, Martin Lenz; Part I Angels as Exemplars of World Order; Chapter 1 The Hierarchies in the Writings of Alan of Lille, William of Auvergne and St Bonaventure, David Luscombe; Chapter 2 Deplatonising the Celestial Hierarchy: Peter John Olivi's Interpretation of the Pseudo-Dionysius, Sylvain Piron; Chapter 3 Angelic Individuality and the Possibility of a Better World: Durandus of St Pourçain's Criticism of Thomas Aquinas, Isabel Iribarren; Part II Angelic Location; Chapter 4 Abelard on Angels, John Marenbon; Chapter 5 The Condemnations of 1277 and Henry of Ghent on Angelic Location, Richard Cross; Chapter 6 Angels, Space and Place: The Location of Separate Substances according to John Duns Scotus, Tiziana Suárez-Nani1I am particularly grateful to Isabel Iribarren, who, with much competence, precision and patience translated into English the French version of this text.; Chapter 7 Late Medieval Debates on the Location of Angels after the Condemnation of 1277, Henrik Wels; Part III Angelic Cognition and Language; Chapter 8 The Language of Angels: On the Subjectivity and Intersubjectivity of Pure Spirits, Theo Kobusch1I would like to thank Thomas Dewender and Jörn Müller for the co-operative translation of my text.; Chapter 9 Thought Experiments: The Methodological Function of Angels in Late Medieval Epistemology, Dominik Perler; Chapter 10 Why Can't Angels Think Properly? Ockham against Chatton and Aquinas, Martin Lenz; Part IV Demonology; Chapter 11 Demons as Psychological Abstractions, Alexander Murray; Part V Angels in the Renaissance and The Early Modern Period; Chapter 12 Medieval, Renaissance, and Reformation Angels: A Comparison, Stephan Meier-Oeser; Chapter 13 On Angelic Bodies: Some Philosophical Discussions in the Seventeenth Century, Anja Hallacker;