Dr. David T. Courtwright is a historian who specializes in drug history. He writes about violence, political and policy history, aviation, and frontier environments. He is a Professor at the University of North Florida, where he teaches medical, U.S., and world history.Courtwright's first book, "Addicts Who Survived: An Oral History of Narcotic Use in America before 1965," was published in 2012. He has published seven books, including his most recent, "The Age of Addiction: How Bad Habits Became Big Business," which was published in 2019.Dr. Courtwright received his B.A. in English from the University of Kansas and his Ph.D. in History from Rice University.