John O’Brian is an art historian, writer, and curator. Over the last decade he has organized five exhibitions on photography and the nuclear era—Bombhead (Vancouver, 2018), The Nuclear Machine (Copenhagen, 2016), Camera Atomica (Toronto, 2015), After the Flash (London, 2014), Strangelove’s Weegee (Vancouver, 2013)—and published twenty books, including Ruthless Hedonism: The American Reception of Matisse, David Milne and the Modern Tradition of Painting, and Clement Greenberg: The Collected Essays and Criticism, which he edited. He is a recipient of the Thakore Award in Human Rights and Peace Studies from Simon Fraser University. He lives in Vancouver and until recently taught at the University of British Columbia.