Pence has authored the following books:
- Pence, G. Medical Ethics: Accounts of Ground-Breaking Cases in Medical Ethics, 6/ed., McGraw-Hill Publishers, 2010.
- Pence, G. Who's Afraid of Human Cloning?, Rowman & Littlefield Publishers, Inc., 1998.
- Pence, G. Re-Creating Medicine: Ethical Issues at the Frontiers of Medicine, Rowman & Littlefield Publishers, Inc., 2000.
- Pence, G. Designer Food: Mutant Harvest or Breadbasket of the World?, Rowman & Littlefield Publishers, Inc., 2001.
- Pence, G. Cloning After Dolly: Who's Still Afraid?, Rowman & Littlefield Publishers, Inc., 2004.
- Pence, G. The Elements of Bioethics, McGraw-Hill Publishers, 2007.
He has edited four books, the last one below being a collection of his op-eds in newspapers and magazines:
- Pence, G. Classic Works in Medical Ethics, McGraw-Hill Publishers, 1995.
- Pence, G. The Ethics of Food: A Reader for the Twenty-First Century, Rowman & Littlefield Publishers, Inc., 2002.
- Pence, G. Flesh of My Flesh: The Ethics of Cloning Humans, Rowman & Littlefield Publishers, Inc., 1998.
- Pence, G., Brave New Bioethics, Rowman & Littlefield Publishers, Inc., 2003.