Data is fundamental to all research and all research has data in some form or other. Data does not just mean huge datasets but can be excel files, diaries, lab notes, photographs, interviews and a myriad of other formats that are the outputs of the research process. Open research data refers to the data underpinning research results that has no restrictions on its access, enabling anyone to use and reuse it. For the Sciences the expectation is that the data can be reused and used in order to validate the research findings. For the Arts, Humanities and Social Sciences it is more about using the data to evidence the production of new knowledge (this may be more subjective, ephemeral and tacit). An article can be seen as the promotional tool for the research but without the data how can you be sure that the conclusions arrived at are valid?