Dr Leonor Sierra is on the board of the Spanish association Ciencia en el Parlamento (Science in Parliament), a Spanish initiative to connect science and policymaking, as their Research and International Affairs Officer. She has over ten years of experience working in science communication and science policy, with a focus on helping scientists get involved in and have an impact on public debates about science. Following her PhD in Physics at the University of Cambridge, she worked for the UK non-profit Sense About Science communicating about science on a range of issues, running international workshops on Standing Up for Science for early career researchers and eventually taking on the role of International Science and Policy Manager, including coordinating the push for the inclusion in the UK’s Ministerial Code of a reference to the Principles for Independent Scientific Advice. Moving to the USA in 2016, she worked as a press officer for a major research university writing stories about physics and engineering. She currently lives in Athens, GA, USA, and works as a freelancer.