Caroline Fiennes, director and founder of the philanthropic consultancy and campaign Giving Evidence, advises her clients to use an evidence-based approach to their charitable giving. ‘Among the donors who call us up, there is more interest in doing a good job, [than] using evidence to underpin their decisions,’ notes the author and award-winning former charity CEO. ‘The donor may want to fund interventions in their area of interest…. or if little is known, to fund more research in that area.’ Fiennes, who has advised donors including Eurostar and the BBC, wrote an article in the journal Nature this year calling for the creation of the ‘science of philanthropy’. In her spare time, she obsesses over cathedral architecture.