The Koninklijke Bibliotheek (KB) is the national library of the Netherlands: we bring people and information together. We offer access to everything published in and about the Netherlands, play a central role in the (scientific) information infrastructure of the Netherlands and promote permanent access to digital information nationally and internationally. We digitise all the books, periodicals and newspapers that have been published in the Netherlands (http://www.delpher.nl/). Most of the resulting data is available for researchers via an API.