Enrique Villanueva is now Research Fellow at the Instituto de Investigaciones Jurídicas in the Universidad Nacional Autónoma de México in México City, a University where he has been doing research and teaching since he completed his Graduate Studies at the University of Oxford in 1972, and where he is currently doing research on the Philosophy of Mind and in Practical Philosophy. He has published more than eighty essays and reviews in Metaphysics, Philosophy of Mind, Philosophical History and Moral, Legal and Political Philosophy. Besides editorship of the present Journal he has edited the Journal Philosophical Issues (till number 9; and co-edited it with Ernest Sosa from number 10), the series Simposio Internacional de Filosofía and the volumes Information, Semantics and Epistemology, El argumento del lenguaje privado and Mente y Cuerpo (co-editor). He is author of Lenguaje y Privacidad, Ensayos de Historia Filosófica, Las Personas, and ¿Qué son las Propiedades Psicológicas?