'...an elegant and scholarly inquiry on the kind of mistakes that entitle those who commit them to seek relief from the courts of the unfortunate consequences of their action. This work is organized around three main parts: first, alleviating mistakes are distinguished from the myriad of other mishaps, secondly, problems of scepticism and proof of such mistakes are dealt with; and finally, factors which influence the availability of relief are considered. ...a seminal work that no legal scholar interested in mistakes could afford to do without.'