The Sentencing Project 

The dramatic growth of the U.S. prison population in the last 40 years has led to record levels of disenfranchisement, with an estimated 5.85 million citizens banned from the polls today. Felony Disenfranchisement: A Primer provides an introduction to the issue, covering: an overview of state felony disenfranchisement policies; the history and impact of felony disenfranchisement; state-level reform efforts; disenfranchisement policies in an international context; and the impact of felony disenfranchisement.