The Data Journalism Handbook is intended to be a useful resource for anyone interested in becoming a data journalist, or dabbling in data journalism.

It was born at a 48 hour workshop at MozFest 2011 in London. It subsequently spilled over into an international, collaborative effort involving dozens of data journalism’s leading advocates and best practitioners – including from the Australian Broadcasting Corporation, the BBC, the Chicago Tribune, Deutsche Welle, the Guardian, the Financial Times, Helsingin Sanomat, La Nacion, the New York Times, ProPublica, the Washington Post, the Texas Tribune, Verdens Gang, Wales Online, Zeit Online and many others.

Here’s a handy infographic that gives an overview of the contents:

There’s a printed O’Reilly version coming soon, and a complete free (CC-BY-SA) beta web version up right now.