The Atlas of Digitised Newspapers and Metadata is an open access guide to digitised newspapers around the world. Its initial selection is limited in scope, being comprised of the ten databases (including the aggregator Europeana) for which we were able to secure access and licensing to the machine-readable data. Nonetheless, it aims to form the foundation of a wider mapping of collections beyond its current North Atlantic and Anglophone-Pacific focus. It brings together their histories and digitisation choices with a deeper look at the language of the digitised newspaper, the evolution of newspaper terminology and the variety of metadata available in these collections. It explores how machine-readable information about an issue, volume, page, and author is stored in the digital file alongside the raw content or text, and provides a controlled vocabulary designed to be used across disciplines, within academia and beyond.