Helen Sheldon joined the Health Innovation Network in 2018 to support their work to spread and adopt innovation in health and care. Since then, she has led large scale, complex evaluations of implementation at a local, regional and national level. Helen has thirty years’ experience of evaluating initiatives in different settings, using a range of techniques. She has a particular expertise in qualitative methods and stakeholder engagement, and in managing research and evaluation projects to promote equity. Helen is particularly passionate about meaningfully involving service users and the public to co-produce and deliver evaluations.