How many inmates are held in European prisons? Among them, how many are women? How many are foreign citizens? How many are not serving a final sentence? How many people enter prison every year, and how long do they remain there? Are there enough places for all of them? What is the ratio of inmates per member of prison staff? How much do prisons cost? If you are looking for the data necessary to provide answers to these and many other similar questions, this is the book for you. The Sourcebook of prison statistics compiles absolute numbers for 30 prison-related measures and computes another 30 indicators which can be used for comparative purposes. The sourcebook should be used together with Volume 1 of the Prisons in Europe 2005-2015 collection, which provides the context and methodology used to produce the data presented here.