English: This talk introduces the Wikimedia Movement's latest major wiki project: Wikidata. It covers what Wikidata is, how to contribute new data to Wikidata, how to create an entirely new item on Wikidata, how to embed data from Wikidata into pages on other wikis, tools like the Wikidata Game, Article Placeholder, Reasonator, and Mix-and-match, and how to query Wikidata (including SPARQL examples). There is also a 3-hour video of this talk