This online book, an initiative of the European Journalism Centre and the Open Knowledge Foundation, is a resource for anyone interested in becoming a data journalist. It outlines what data journalism is, why it is important, and how to do it.

The book covers 'life in a newsroom', a series of case studies, and sections on how to gather, understand and deliver data. It also looks at data visualization tools available on the web, and how they can be used effectively to both breaking news — at the location of an accident, for example — or to produce feature stories.

The guide includes contributions from data journalists at the BBC, the Chicago Tribune, the Guardian, the Financial Times, the New York Times and the Washington Post.