Raymond Tallis is Professor of Geriatric Medicine at the University of Manchester and Fellow of the Academy of Medical Sciences. Over the last 15 years he has published extensively outside the field of medicine. There have been three books which mount a critique of post-structuralist theory: Not Saussure: A Critique of Post-saussurean Literary Theory (Macmillan, 2nd edn, 1995), In Defence of Realism (Arnold & University of Nebraska Press, 2nd edn, 1998) and Theorrhoea and After (Macmillan, 1998). He has also published four books in the philosophy of mind: The Explicit Animal: A Defence of Human Consciousness (Macmillan, 1991), The Pursuit of Mind (co-edited with Howard Robinson, Carcanet, 1991), Psycho Electronics (Ferrington, 1994) and On the Edge of Certainty and Other Essays (Macmillan, 1999). Further books include Newton's Sleep: The Two Cultures and the Two Kingdoms (Macmillan, 1995), Enemies of Hope: A Critique of Contemporary Pessimism (Macmillan, 1997) and A Conversation with Martin Heidegger (Macmillan (Palgrave), 2002). An anthology of his theoretical writing - The Raymond Tallis Reader, edited by Michael Grant - was published by Macmillan (Palgrave) in 2000. He was awarded the degree of Doctor of Letters (hon causa) at the University of Hull in 1997 for his non-medical writings and the degree of Doctor of Letters (hon causa) at the University of Manchester in 2003 for 'contributions to literary theory and our understanding of human consciousness'. The Knowing Animal is the final volume in the trilogy of books for EUP which began with The Hand and continued with I Am.