- The Prison Reform Trust's publications, including its Bromley Briefings include a wealth of information about imprisonment and the UK prison population.
- The ICPR (Institute for Crime & Justice Policy Research) website carries information about prison systems throughout the world, including prison population rates.
- The GOV.UK webpages give access to a range of information, including official statistics and the annual report for HM Prison & Probation Service
- The ‘Secret Life of Prisons’ podcast gives a good flavour of the details of prison life in England & Wales. See Ear Hustle for a similar podcast series, on the daily realities of prison life in the US.
- The website for HM Inspectorate of Prisons provides detailed reports of prison inspections while the website for the Prisons and Probation Ombudsman (PPO) provides details of investigations into complaints and deaths in custody.