When Goff and Jones published The Law of Restitution in 1966, they can justifiably be said to have "created" a new legal subject, for they convincingly showed that a mass of cases drawn from apparently disparate areas were best understood and explained as applications of an underlying and unifying principle of reversing unjust enrichment. This book contributes to the ongoing fight for the recognition, development, and correct application of the law of restitution.