Offender volunteering provides benefits like developing skills, confidence, and a pro-social identity which can help with employment and reduce reoffending. Typical examples of volunteering include peer support, community placements, and democratic engagement in prison life. Volunteers reported that it helped them develop life skills, brought out new qualities, and gave them a sense of achievement and perspective. However, barriers include the stresses of prison making additional responsibilities difficult, and concerns that a criminal record could prevent future volunteering. Effective support and training are needed for prison volunteering programs to succeed.