This article by data journalist MaryJo Webster provides an overview on the topic. The website also contains resources and educational materials for data journalists.
Contains videos, tipsheets, articles and a free, open-source online book on data journalism. An initiative of the European Journalism Centre and Open Knowledge Foundation.
A massive list of data journalism resources from around the world, including resources on data mining, analysis, mapping, visualization, and statistics.
The Data Journalism Handbook: Towards a Critical Data Practice provides a rich and panoramic introduction to data journalism, combining both critical reflection and practical insight. It offers a diverse collection of perspectives on how data journalism is done around the world and the broader consequences of datafication in the news, serving as both a textbook and a sourcebook for this emerging field.
The goal of data visualization is to use images to improve our understanding of a dataset, drawing on techniques from mathematics, computer science, cognitive and perception science, and physics. In this introductory text, the author provides a compact introduction to the field that allows readers to learn about visualization techniques.