I'll be running an introductory workshop on SPARQL queries and their applications at the next Cambridge meetup, on 12 May:
https://meta.wikimedia.org/wiki/Meetup/Cambridge/41
Apologies for the clash with the London meetup: I'll not make a habit of this.
This will be a largely Wikidata-oriented edition of the Cambridge meetup, and I'm constrained by available spaces for the Makespace classroom, which is suitable for training. The main topic will be getting a grip on scientific literature as catalogued on Wikidata, in its many aspects, as required by the ScienceSource project I'm working on.
If you've not really seen the point of Wikidata, so far, this should be a point of entry. In the time provided we'll get to some more advanced things, too.
The SPARQL session will be 1300 to 1530, will not assume much previous Wikidata knowledge, and if you come you should bring a laptop.
Charles