The aim of this book is not to make atheism a popular belief or even to overcome its invisibility. My object is not utopian. It is merely to provide good reasons for being an atheist. My object is to show that atheism is a rational position and that belief in God is not. I am quite aware that atheistic beliefs are not always based on reason. My claim is that they should be.

• with M. Foster. Probability, Confirmation and Simplicity. New York: Odyssey Press, 1966.
• Concepts of Science Education: A Philosophical Analysis (Chicago: Scott-Foresman, 1972) ISBN 0-8191-4479-7
• Social Science and Philosophical Analysis: Essays on The Philosophy of The Social Sciences (Washington, D.C.: University Press of America, 1978)
• The Legal Philosophy of H.L.A. Hart: A Critical Appraisal. Philadelphia: Temple University Press, 1987. ISBN 0-87722-471-4
• Atheism: A Philosophical Justification (Philadelphia: Temple University Press, 1989, republished 1992) ISBN 0-87722-943-0
• The Case Against Christianity (Philadelphia: Temple University Press, 1991) ISBN 1-56639-081-8
• Readings in the Philosophy of Social Science (Cambridge: The MIT Press, 1994) with L. McIntyre; ISBN 0-262-13296-6
• The Big Domino in The Sky and Other Atheistic Tales (Buffalo: Prometheus Books, 1996) ISBN 1-57392-111-4
• Legal Realism: American and Scandinavian (New York: Peter Lang, 1997) ISBN 0-8204-3462-9
• Atheism, Morality, and Meaning (Amherst, NY: Prometheus, 2002) ISBN 1-57392-987-5
• with R. Monnier (ed.). The Impossibility of God. Prometheus, 2003. ISBN 1-59102-120-0
• with R, Monnier (ed.). The Improbability of God. Prometheus, 2006. ISBN 1-59102-381-5
• (ed.) The Cambridge Companion to Atheism. Cambridge University Press, 2006.