1. Introduction: What Works and what matters, George Mair 2. The origins of What Works in England and Wales: a house built on sand? George Mair 3.The uses and abuses of positivism, David Smith 4. Dangerous thinking: a critical history of correctional cognitive behaviouralism, Kathleen Kendall 5. How cognitive skills forgot about gender and diversity, Margaret Shaw and Kelly Hannah-Moffat 6. The barking dog? Partnership and effective practice, Judith Rumgay 7. Getting tough or being effective: what matters? Carol Hedderman and Mike Hough 8. Beyond programmes: organisational and cultural issues in the implementation of What Works, Hazel Kemshall, Paul Holt, Roy Bailey and Gwyneth Boswell 9. Supervision, motivation and social context: what matters most when probationers desist? Stephen Farrall 10. Community reintegration: for whom? Jon Spencer and Jo Deakin 11. Community service as reintegration: exploring the potential, Loraine Gelsthorpe and Sue Rex 12. What Works: a view from the chiefs, George Mair 13. Purposes matter: examining the 'ends' of probation, Gwen Robinson and Fergus McNeill 14. Getting personal: developments in policy and practice in Scotland, Gill Mclvor 15. What Works and the globalisation of punishment talk, Anne Worrall