The European Journalism Centre in collaboration with the Open Knowledge Foundation have written this book, explaining how data & information relevant to a topic being researched can be sourced, compiled & interpreted for an article. While this book has been written with journalists intended as its target audience, instructions & teachings should be handy & useful for bloggers alike.
The manual aims to address one crucial problem: "There are a lot of useful resources on the web," Liliana Bounegru of the EJC said, "but they are all scattered in different places. So what we're trying to do is put everything together and have a comprehensive step-by-step guide."
The book has some of the most renowned names in the field of journalism like those from the BBC, the New York Times, ProPublica, the Washington Post among others contributing to it. Explained in this page from the book is its purpose & structure.
Hat Tip to IntelliBriefs