Her book, Blessed: A History of the American Prosperity Gospel (Oxford University Press, 2013), received widespread media attention and academic praise as the first history of the movement based on divine promises of health, wealth, and happiness. She researched and traveled Canada and the United States interviewing megachurch leaders and everyday believers about how they make spiritual meaning of the good or bad in their lives. Her work on the prosperity gospel has been featured in the New York Times, The New Republic, The Guardian, TIME Magazine, The Atlantic, The Economist, The Washington Post, NPR, and the BBC.