This book lives at http://patterns.dataincubator.org. Check that website for the latest version. This work is licenced under the Creative Commons Attribution 2.0 UK: England & Wales License. To view a copy of this licence, visit http://creativecommons.org/licenses/by/2.0/uk/. Thanks to members of the Linked Data mailing list for their feedback and input, and Sean Hannan for contributing some CSS to style the online book.