Abstract: David Ball writes about the emergence of Open Science and Open Data. Notably he emphasises that this developing paradigm goes way beyond STEM subjects and impacts on social science, arts and humanities. Research data can be qualitative and well as quantitative and embrace statistics, digital images, archives, sound recordings and survey data, for example. He provides an extensive overview of Open Science and Open Data, their rationale and potential.
 Keywords: Open Science, Open Data, Open Access