PART ONE - FUNDAMENTAL IDEAS ; 1. Introduction to unjust enrichment and restitution ; 2. Competing theories ; 3. Benefit ; 4. At the expense of the claimant ; 5. Unjust factors or absence of basis? ; 6. Tracing ; 7. Subrogation ; 8. Proprietary restitution ; PART TWO - UNJUST FACTORS ; 9. Mistake ; 10. Duress ; 11. Undue influence ; 12. Exploitation of weakness ; 13. Human incapacity ; 14. Failure of consideration I ; 15. Failure of consideration II ; 16. Ignorance ; 17. Legal compulsion: compulsory discharge of another's legal liability ; 18. Necessity ; 19. Illegality ; PART THREE - DEFENCES ; 21. Change of position, estoppel and the defence of agency ; 22. Other defences ; PART FOUR - RESTITUTION FOR WRONGS ; 23. Introduction to restitution for wrongs ; 24. Restitution for torts ; 25. Restitution for breach of contract ; 26. Restitution for equitable wrongs ; 27. Defences to restitution for wrongs ; PART FIVE - CONFLICT OF LAWS ; 28. The conflict of laws

1. Restitution -- England
2. Restitution -- Wales
3. Contracts -- England
4. Contracts -- Wales