On 9th January 2020, Dione Hills (Tavistock Institute) and Pete Barbrook-Johnson (University of Surrey) delivered training on how to conduct evaluations in complex settings to a mixed group of practitioners and policy teams working on public health issues in London. The session was organised by the London office of Public Health England, and will be followed by bespoke sessions in which CECAN will further support specific team’s evaluation efforts in the complex public health policy areas in which they work. The initial course was based upon the CECAN syllabus which can found at www.cecan.ac.uk/resources