Jonathan Wolff is Professor of Philosophy at University College London. He is the author of Robert Nozick (1991), An Introduction to Political Philosophy (1996), and Why Read Marx Today (2002) and, editor, with Michael Rosen, of Political Thought (1999) and with Martin Stone The Proper Ambition of Science, as well as papers on many topics within contemporary political philosophy. He works as a consultant on the ethics of risk for the railway industry, and has sat on public committees looking into the ethics of animal experimentation, the regulation of gambling, the law of homicide and the regulation of drugs. His present research concerns a number of issues connecting philosophical theory and practice, including safety, disability, health and crime. His works have been translated into over ten languages.
Avner de-Shalit is the Max Kampelman Professor of Democracy and Human Rights at the Hebrew University of Jerusalem. He is the author of Why posterity Matters? (1995), Socialism (in Hebrew, 1997), The Environment: Between Theory and Practice (2000) and Power to the People: Teaching Political Philosophy in Skeptical Times (2006), and co-editor, with Daniel Bell, of Forms of Justice (2003). He has published numerous articles, mostly in the field of environmental political theory. de-Shalit is chairperson of the Public Council on Environment and Society in Israel.