The discussion about the possibility of British judges invalidate statutes is surrounded by a vast complexity of questions. According the theory of its sovereignty, the British Parliament has unlimited legislative power, despite the fact that it also happens because of the legal flexibility of the unwritten Constitution. Written by Professor Goldsworthy, "The sovereignty of Parliament" is an outstanding book about this extremely important doctrine. Here, Goldsworthy has contested many recent critics about the doctrine of the parliamentary sovereignty, which have claimed that it is a recent invention of academic lawyers and, furthermore, that it is based in a misunderstanding about the real nature of the British Constitution. Then, the author magnifically pointed out that this doctrine, as a matter of fact, has been present in the English constitutionalism since the thirteenth century. Discussing many legal and political thinkers, including Fortescue, Locke, Hobbes and Blackstone, he has empirically proved that British judges have never had authority to invalidate statutes, and, what is more, that this doctrine of the parliamentary sovereignty is much older than usually imagined. To conclude, Goldsworthy observes that the traditional English concept of the sovereignty of Parliament is morally defensible, as well as the judicial review is not essential for the protection of human rights and democracy, even though judicial control of the legal constitutionality could improve the protection of human rights and democracy.