Encyclopedia of Camps and Ghettos, 1933–1945

Encyclopedia of Camps and Ghettos, 1933–1945 is a seven-part encyclopedia series that explores the history of the concentration camps, ghettos, forced-labor camps, and other sites of detention, persecution, or state-sponsored murder run by Nazi Germany and other Axis powers in Europe and Africa. The series is produced by the United States Holocaust Memorial Museum (USHMM) and published by Indiana University Press. Research began in 2000; the first volume was published in 2009; and the final volume is slated for publication in 2025. Along with entries on individual sites, the encyclopedias also contain scholarly overviews for historical context.

The project attracted media attention when its editors announced in 2013 that the series would cover more than 42,500 sites, eight times more than expected. The first two volumes in the series, covering the Nazi concentration camps and Nazi ghettos, received a positive response from both scholars and survivors. Multiple scholars have described the encyclopedias as the most comprehensive reference on their given subjects.