The second edition of the Encyclopedia of Medieval Philosophy is expanded and substantially revised. It is the largest reference work of medieval philosophy in English and it covers all the four language traditions, Latin, Arabic, Greek, and Hebrew, of western medieval philosophy.

The Encyclopedia covers all areas of philosophy in the Middle Ages and part of the Renaissance, ranging from 500 to 1500 CE. It contains general entries on medieval philosophers and medieval philosophies and on the key terms and concepts in the subject area, but it also provides more in-depth details and analyses of particular theories. Furthermore, in order to gain an insight into the social and cultural context of the material, entries are included on the teaching of philosophy, the career of philosophers, and the place of philosophy within the universities.

Henrik Lagerlund is Professor of History of Philosophy at Stockholm University in Sweden. He was previously Professor of Philosophy and Head of the Philosophy Department at the University of Western Ontario in Canada. He works primarily on Medieval and Renaissance philosophy, but has also written on Aristotle and Leibniz. He has written several articles and books, including the recent Skepticism in Philosophy: A Comprehensive, Historical Introduction (Routledge, 2020). His other publications include the books Modal Syllogistics in the Middle Ages (2000), Rethinking the History of Skepticism (2010), and Representation and Objects of Thought in Medieval Philosophy (2008). He is also editor of The Routledge Companion to Sixteenth Century Philosophy (2017).

Section Editors for Second Edition:

Professor Cristina D'Ancona, University of Pisa, Italy
Professor Christina van Dyke, Calvin College, USA
Associate Professor Gloria Frost, University of St. Thomas, USA
Professor Katerina Ierodiakonou, National Technical University of Athens, Greece
Professor Jill Kraye, Warburg Institute, University of London, United Kingdom
Professor John Marenbon, University of Cambridge, United Kingdom
Professor Tamar Rudavsky, Ohio State University, USA

Section Editors for First Edition:

Professor Cristina D'Ancona, University of Pisa, Italy
Professor Katerina Ierodiakonou, National Technical University of Athens, Greece
Professor Bonnie Kent, UC Irvine, USA
Professor Peter King, University of Toronto, Canada
Professor Simo Knuuttila, University of Helsinki, Finland
Professor Jill Kraye, Warburg Institute, University of London, United Kingdom
Professor Alain de Libera, University of Geneva, Switzerland
Professor Alfonso Maierù, University of Rome, "La Sapienza", Italy
Professor John Marenbon, University of Cambridge, United Kingdom
Professor Emeritus A. S. McGrade, University of Connecticut, US
Professor Dominik Perler, Humboldt-University of Berlin, Germany
Professor Tamar Rudavsky, Ohio State University, USA
Professor Hans Thijssen, Radbout Universiteit Nijmegen, The Netherlands
Professor Rega Wood, Stanford University, USA