From the reviews of the second edition: "Extensible Markup Language (XML) is the basis of the semantic Web's metadata. ... The production quality of the book is quite high, featuring high-gloss paper and containing numerous intriguing color screen shots of visualization outputs ... . the book does a good job of providing an understanding of the semantic web, presenting its vision and an overview of research into its visualization." (A. E. Salwin, Computing Reviews, December, 2006)