What are the best tutorials and hands-on exercises for learning SPARQL 1.0?

What are the best tutorials and hands-on exercises for learning SPARQL 1.0?

[Moved from http://www.semanticoverflow.com/questions/3133/querying-an-owl-files/3144#3144 thanks to the suggestion of Egon Willighagen]

Please forgive the shameless plug: My O'Reilly book "Learning SPARQL" is now available from O'Reilly, Amazon, and Barnes and Noble. It covers SPARQL 1.0 and 1.1, and the 1.1 parts are clearly marked. See http://www.learningsparql.com for more.

Jena web site provides a nice tutorial about SPARQL