Neumann is the author of What's Left? Radical Politics and the Radical Psyche (1988) and The Rule of Law: Politicizing Ethics (2002). He is a frequent contributor to the CounterPunch newsletter edited by Alexander Cockburn and Jeffrey St. Clair, and contributed to their 2003 edited collection The Politics of Anti-Semitism.[7] In 2005 he published The Case Against Israel, a response to Alan Dershowitz's The Case for Israel.