- Constantine and the Council of Nicaea: Defining Orthodoxy and Heresy in Christianity, 325 CE
- Environmental Science and International Politics: Acid Rain in Europe, 1979-1989, and Climate Change in Copenhagen, 2009
- Constantine and the Council of Nicaea, Second Edition: Defining Orthodoxy and Heresy in Christianity, 325 CE
- Making News: A Straight-Shooting Guide to Media Relations
- Making News in the Digital Era