Marc Mauer is the executive director of The Sentencing Project, a national organization based in Washington, DC, that promotes criminal justice reform. He is the author of Race to Incarcerate, the co-editor (with Meda Chesney-Lind) of Invisible Punishment: The Collateral Consequences of Mass Imprisonment. He lives in Silver Spring, Maryland. Ashley Nellis is a senior research analyst for The Sentencing Project who has written extensively on the prevalence of life sentences in the United States. She lives in Falls Church, Virginia.