Book review of Dieter Fensel, James Hendler, Henry Lieberman, Wolfgang Wahlster (eds.), "Spinning the Semantic Web: Bringing the World Wide Web to Its Full Potential", The MIT Press, Cambridge (MA US), 2003, 0-262-06232-1, 479pp. US$40 T he Semantic Web began at the end of the last century as an object of investigation and experimentation. It has grown into a subject of huge interest to several research communities and to Web users at large. Many people consider it the next generation of the Web, a Web that machines themselves can handle to help users.