Peter Cave is a popular philosophy writer and speaker. He read philosophy at University College London and King's College Cambridge, has held lectureships in Britain and given guest presentations at various other European universities; some time ago he held a lectureship at the University of Khartoum, Sudan. For many years he has been a lecturer at the Open University and New York University, London.

Peter is a Fellow of the Royal Society of Arts, Honorary Member of Population Matters, former member of the Council of the Royal Institute of Philosophy and Chair of Humanist Philosophers - and is a Patron of Humanists UK. Peter has scripted and presented BBC radio philosophy programmes - from a series on the Paradox Fair to more serious ones on John Stuart Mill. He often takes part in public debates on religion, ethics and socio-political matters.

His philosophy books include This Sentence Is False: An Introduction to Philosophical Paradoxes (2009), and three Beginner's Guides: to Humanism, Philosophy and Ethics. More recent works are The Big Think Book: Discover Philosophy Through 99 Perplexing Problems (2015) and The Myths We Live By: A Contrarian's Guide to Democracy, Free Speech and Other Liberal Fictions (2019).