Ethics and the Golden Rule (New York and London: Routledge, 2012), a fairly comprehensive treatment of the golden rule ("Treat others as you want to be treated"). It covers a wide range of topics, such as how the golden rule connects with world religions and history, how it applies to practical areas like moral education and business, and how it can be understood and defended philosophically. I wrote this to be a "golden-rule book for everyone," from students to general readers to specialists. I hope to have this out in late 2012 or early 2013.

Ethics: A Contemporary Introduction, second edition (New York and London: Routledge, 2011), 190 pages, with the companion EthiCola instructional program and a Teacher Manual: a text for beginning undergraduates. This is a thorough rewrite of the first edition, with added chapters on virtue ethics and natural law.

Introduction to Logic, second edition (New York and London: Routledge, 2010), 420 pages, with the companion LogiCola instructional program and a Teacher Manual: a basic and intermediate logic text. This is a thorough rewrite of the first edition, with added chapters on the history of logic, deviant logic, and philosophy of logic.

Historical Dictionary of Ethics (Lanham, Md., Scarecrow Press [Rowman & Littlefield], 2008), 363 pages, a one-volume encyclopedia of ethics, co-authored with Earl W. Spurgin. The A to Z of Ethics (2010) is a paperback version.

Historical Dictionary of Logic (Lanham, Md., Scarecrow Press [Rowman & Littlefield], 2006), 307 pages, a one-volume encyclopedia of logic. The A to Z of Logic (2010) is a paperback version.

The Sheed & Ward Anthology of Catholic Philosophy (Lanham, Md.: Rowman & Littlefield, 2005), 585 pages: a text and source book, co-edited with James C. Swindal.

Ethics: Contemporary Readings (New York and London: Routledge, 2004), 314 pages: an ethics anthology, co-edited with Earl W. Spurgin and James C. Swindal.

Introduction to Logic, first edition (London and New York: Routledge, 2002), 399 pages, with the companion LogiCola instructional program and a Teacher Manual: a basic and intermediate logic text. This is a thorough rewrite of the two Prentice-Hall logic books mentioned below, incorporating and updating all of their materials. Chapter 11 was translated into Persian by Mehdi Akhavan and published in the Iranian journal Naqd o Nazar. This book is now obsolete, being replaced by the second edition (mentioned above).

Ethics: A Contemporary Introduction (London and New York: Routledge, 1998), 211 pages, with the companion EthiCola instructional program and a Teacher Manual: a text for beginning undergraduates. Translated into Chinese as by Zhoubaheng Danshile (Taiwan: Weber, 1999), into French as Questions d'éthique: Une approche raisonnée de quelques perspectives contemporaines by M.-C. Désorcy (Montréal and Toronto: Chenelière/McGraw-Hill, 2002), into Thai as by Jakaew Tanunath (Bangkok, 2006), and into Persian as by Mehdi Akhavan (Tehran: Elmi-Farhangi, 2009). Three selections translated into a Portuguese reader, A Arte de Pensar, ed. Desidério Murcho (Lisbon: Didáctica Editora, 2007). This book is now obsolete, being replaced by the second edition (mentioned above).

Formal Ethics (London and New York: Routledge, 1996), 213 pages, with the companion EthiCola instructional program: a scholarly work on the golden rule and related principles. Translated into Persian as by Mehdi Akhavan (Tehran, Iran: Elmi-Farhangi, 2009).

Symbolic Logic: Classical and Advanced Systems (Englewood Cliffs: Prentice Hall, 1990), 329 pages, with the companion LogiCola instructional program and a Teacher Manual: an intermediate logic text. This book is now out of print and obsolete, being replaced by my Introduction to Logic (above).

Logic: Analyzing and Appraising Arguments (Englewood Cliffs: Prentice Hall, 1989), 438 pages, with the companion LogiCola instructional program and a Teacher Manual and a Study Guide: a basic logic text. This book is now out of print and obsolete, being replaced by my Introduction to Logic (above).

Gödel's Theorem Simplified (Washington: University Press of America, 1984), 83 pages: a simple presentation of the theorem.

To order any of my books, click here or here. Several of my books are available in e-book format: Kindle, Sony, Routledge (search for author Gensler).

I am now working on a second edition of my Ethics: A Contemporary Introduction, which Routledge will publish in 2011. After that, I want to write a comprehensive book on the golden rule, to be called something like The Golden Rule Book.

Some of my articles are available online (but may be accessible only from university locations):

• "A simplified decision procedure for categorical syllogisms," Notre Dame Journal of Formal Logic 14 (1973): 457-66.
• "The prescriptivism incompleteness theorem," Mind 85 (1976): 589-96.
• "Acting commits one to ethical beliefs," Analysis 43 (1983): 40-43.
• "How incomplete is prescriptivism?" Mind 93 (1984): 103-107.
• "Logic and the first critique," Kant-Studien 76 (1985): 276-87.
• "Ethical consistency principles," Philosophical Quarterly 35 (1985): 156-70.
• "A Kantian argument against abortion," Philosophical Studies 48 (1985): 57-72 and 49 (1986): 83-98.
• "Ethics is based on rationality," Journal of Value Inquiry 20 (1986): 251-64.
• "A click in the right direction: Marry textbooks and computers and you may have a learning match made in heaven," London Times Higher Education Supplement (textbook guide, February 26, 1999): page 9.
• Listen to a debate I had with Peter Singer at John Carroll University on December 4, 2000 about the sanctity of human life. Here's the text of my response to Singer. [I suggest saving this file to your computer instead of reading it on your Web browser.] For an expanded version of the debate, see my "Singer's unsanctity of human life: A critique," in Peter Singer Under Fire, edited by Jeffrey A. Schaler (Chicago: Open Court, 2009), pages 163-84 (with Peter Singer's response on pages 185-94).

And some of my book reviews are available online:

• Review of Morality and Universality, edited by Nelson T. Potter and Mark Timmons, Noûs 23 (1989): 555-57.
• "So why do anything?" (Review of Understanding Human Goods: A Theory of Ethics, by T.D.J. Chappell), London Times Higher Education Supplement (January 22, 1999): 35.
• "Peter Singer -- Moral Hero or Nazi?" (Review of Singer and His Critics, edited by Dale Jamieson, and Ethics into Action: Henry Spira and the Animal Rights Movement, by Peter Singer), London Times Higher Education Supplement (October 8, 1999): 26.
• "Logic and superman" (Review of Logical Properties: Identity, Existence, Predication, Necessity, Truth, by Colin McGinn), London Times Higher Education Supplement (October 26, 2001): 28.
• "Big questions for party-goer" (Review of Kant: A Biography, by Manfred Kuehn), London Times Higher Education Supplement (April 12, 2002): 28-29.
• "Taxing question of the blue (or green) sideswiper" (Review of An Introduction to Probability and Inductive Logic, by Ian Hacking), London Times Higher Education Supplement Textbook Guide (May 31, 2002): 31.
• "Detached analysis, engaged nihilism" (Review of New British Philosophy: The Interviews, edited by Julian Baggini and Jeremy Stangroom), London Times Higher Education Supplement (October 25, 2002).
• Review of The Oxford Handbook of Philosophical Theology, edited by Thomas P. Flint and Michael C. Rea, Notre Dame Philosophical Reviews (September 20, 2009), 4 pages long.
• Review of Ethics and Experience: Life Beyond Moral Theory, by Timothy Chappell, The Philosophical Quarterly 61 (October 2011): 878-80.