In 2011, Museums & Social Issues dedicated an entire issue to prisons and individuals who were incarcerated. This issue of Museums & Social Issues revisits the contemporary issues of mass incarceration and the role that museums and public history play in working alongside and with different communities to promote greater public awareness. All authors featured in this issue participated in the 2015 project with the Humanities Action Lab to create the States of Incarceration traveling exhibition. This exhibition was a coalition of 20 universities who focused on the past, present, and future of incarceration. The authors in this issue reflect on their experiences in creating the States of Incarceration exhibition and examine how their experience relates to the wider work of museum professionals.